• inequality

    Updated: 2010-05-31 15:51:33
    *1. The problem statement, all variables and given/known data* prove the following inequality: *2. Relevant equations*

  • Polarization and Bound Charges

    Updated: 2010-05-31 15:50:41
    Consider a uniform, isotropic , homogeneous solid dielectric slab. We know, induced surface charge=

  • OPERA catches its first tau neutrino

    Updated: 2010-05-31 12:49:34
    Scientists from the OPERA experiment at INFN's Gran Sasso National Laboratory have announced the first direct observation of a neutrino transforming from one type into another. When confirmed by a few more such events, this observation will provide further strong evidence that neutrinos have mass, a phenomenon that remains unexplained by physicists' recipe for understanding the universe, the Standard Model.

  • Zeeman effect

    Updated: 2010-05-31 01:46:43
    Hello all, I am confused with naming of the Zeeman effect (in nuclear or/and electronic levels). Is that means: 1. splitting of spectral lines due to internal magnetic field, or 2. splitting...

  • Bioinformatics Consultant - Pharmaceutical - London

    Updated: 2010-05-31 01:30:03
    Bioinformatics Consultant – Surrey – PharmaceuticalA once in a lifetime opportunity is now available for an Informatics specialist within a leading biotechnology organisation in Surrey. Acting as the...

  • International Quality Assurance Auditor ? UK Wide

    Updated: 2010-05-31 01:30:03
    International Quality Assurance Auditor – UK Wide My client, a world renowned specialist organisation is actively seeking a clinical quality assurance expert to be based in England and audit the...

  • A Shrine to Science on the Missouri River

    Updated: 2010-05-28 18:09:27
    One of the many places I’ve been traveling to recently is a bit unusual: the Linda Hall Library in Kansas City, Missouri. For one thing, it’s a private library; like the Huntington Library in Pasadena, it’s supported almost entirely by private funds. For another, Linda Hall is completely dedicated to science, technology, [...]

  • Packed Lunch: CERN

    Updated: 2010-05-28 16:57:00
    The Large Hadron Collider at CERN We don’t often get to talk about particle physics at the Tru

  • Accelerator physicists strive to lower cost of cancer treatment

    Updated: 2010-05-28 12:56:48
    Accelerator physicists from industry and academia were challenged this week at the International Particle Accelerators Conference in Kyoto, Japan, to find ways to make a new cancer treatment, carbon-ion therapy, more affordable.

  • CDF Says No

    Updated: 2010-05-28 09:02:36
    Recall the excitement last week about the D0 result? I wrote a post called “An Exciting Asymmetry?”. Well, there’s a rule that says if you write a title as a yes/no question, the answer is often (usually?) “No”. Sure enough. over at Resonances, Jester reports that the CDF experiment, also at the Tevatron, has looked for a confirmation of the CP violating result that D0 claimed to see, and did not find anything abnormal where it should have. Find further details (on the technical side for the experts) and links at that post, which, as is usual with material from that blog, is well-written and interesting. This is one reason why we (the particle physics community) build multiple detector/experiments on the same accelerator machine, and this is a prime example [...]

  • Packed Lunch and the last crusade

    Updated: 2010-05-28 08:46:18
    Large Hadron Collider Subscribe via iTunes | Download mp3 | Podcast feed URL Though few of us unders

  • 3QD Science Blogging Prize

    Updated: 2010-05-27 19:53:56
    3 Quarks Daily has embarked on an annual hunt for the best blog posts in four areas: science, politics, philosophy, and arts & literature. Nominations have now opened for this year’s science prize; you have until May 31 to suggest your favorite science blog post from the last year; then there will be [...]

  • Middle East accelerator project approaches barrier

    Updated: 2010-05-27 16:56:40
    Members of an unlikely international collaboration constructing the Middle East’s first synchrotron light source have dealt with outdated equipment, inexperience and language barriers. But one hurdle looms particularly large in their path: They need to gather more than $24 million to complete the final section of the accelerator.

  • Alternative Synopses

    Updated: 2010-05-27 07:07:21
    Will is annoyed by the Karate Kid (2010 version, not the 1984 version), not the least because with Jackie Chan involved, you'd be expecting... Kung Fu right? Weren't we supposed to have stopped confusing the forms back in the 70s or so? People are up in arms about this all over the web it seems. I'll lay off the whole thing since I'm not an expert in the etymology of the terms anyway, but more to the point I'm just tired of having my childhood memories cynically smacked around by pointless remakes, if the truth be told. Anyway, to help himself vent, Will wrote some amusing synopses for other remakes Hollywood might do where the details are... modified. Here are a couple I liked: [...]

  • Darkness Visible 2010

    Updated: 2010-05-27 00:00:00
    Conference: 2 Aug 2010 - 6 Aug 2010, Cambridge, United Kingdom. Organized by Institute of Astronomy, Cambridge, UK.

  • Photonex 2010

    Updated: 2010-05-27 00:00:00
    Conference/exhibition: 3 Nov 2010 - 4 Nov 2010, The International Centre, St Quentin Gate, Telford , West Midlands TF3 4JH, United Kingdom. Organized by Xmark Media Ltd .

  • New Generation Ultrafast Ti:S Oscillator from Elliot Scientific

    Updated: 2010-05-26 10:23:49
    FEMTOSOURCE™ RAINBOW™ is a new generation ultrafast Ti:Sapphire oscillator using Dispersive Mirror (DM) technology available through Elliot Scientific from FEMTOLASERS of Austria.

  • Laser Beam Expanders

    Updated: 2010-05-26 10:23:36
    .

  • US LHC Blog Exciting new physics from the Tevatron

    Updated: 2010-05-26 10:05:20
    Follow us : on US LHC Blogs Home Exciting new physics from the Tevatron Posted by Regina on 26 May 2010 at 04:05 am I was going out to dinner last night with some of my colleagues and the topic of new physics results at the Tevatron specifically DZero came up . I’m always happy to hear about new physics happenings  because it’s too easy to get so caught up in your work that you don’t notice other work being done around you . I know a couple of other bloggers have already posted it , but I’m still excited about it . And maybe a little out of the loop since it’s my last week at CERN and I’ve been really focused on getting a functioning analysis together So for those of you that haven’t heard read there’s some interesting stuff happening with CP violation at the Tevatron . Here’s some :

  • CERN, LHC & The Great Return

    Updated: 2010-05-26 02:45:08
    If you have not read the article “The Breaking of Ouroborus” by Cyprium, i recommend beg

  • Buy your own dinosaur

    Updated: 2010-05-26 00:31:00
    scientific american register Newsletters SA Digital Print Subscriber Services online sections News Features Mind Matters In-Depth Reports Fact or Fiction Extreme Tech Ask the Experts Content Partners Slide Shows Image Gallery Videos Multimedia 60-Second Science Podcast 60-Second Earth Podcast 60-Second Psych Podcast Science Talk Podcast blogs Scientific American Observations Bering in Mind Extinction Countdown Solar at Home Expeditions Guest Blog scientific american magazine Subscribe INSIDE THIS ISSUE Features News Scan 50, 100 150 Years Ago Antigravity Skeptic Critical Mass Scientific American Perspectives Sustainable Developments Ask the Experts Recommendations Letters From the Editor Special Editions scientific american mind magazine Subscribe INSIDE THIS ISSUE Features Head Lines

  • Crude Fix?

    Updated: 2010-05-26 00:30:00
    scientific american register Newsletters SA Digital Print Subscriber Services online sections News Features Mind Matters In-Depth Reports Fact or Fiction Extreme Tech Ask the Experts Content Partners Slide Shows Image Gallery Videos Multimedia 60-Second Science Podcast 60-Second Earth Podcast 60-Second Psych Podcast Science Talk Podcast blogs Scientific American Observations Bering in Mind Extinction Countdown Solar at Home Expeditions Guest Blog scientific american magazine Subscribe INSIDE THIS ISSUE Features News Scan 50, 100 150 Years Ago Antigravity Skeptic Critical Mass Scientific American Perspectives Sustainable Developments Ask the Experts Recommendations Letters From the Editor Special Editions scientific american mind magazine Subscribe INSIDE THIS ISSUE Features Head Lines

  • Training Course in the Physics of Strongly Correlated Systems

    Updated: 2010-05-26 00:00:00
    School: 4 Oct 2010 - 15 Oct 2010, Vietri sul mare (SA), Campania, Italy. Organized by F. Mancini, A. Avella.

  • Polymers in Medicine 2012

    Updated: 2010-05-26 00:00:00
    Conference: 1 Jul 2012 - 5 Jul 2012, Prague, Czech Republic. Organized by Institute of Macromolecular Chemistry AS CR, v.v.i..

  • The Runaway Black Hole

    Updated: 2010-05-24 21:21:26
    Skip to content Asymptotia Nostalgia The Runaway Black Hole Published by Clifford on May 24, 2010 in energy and environment Tags : black holes In recent years there was all the nonsense about how scientists were going to accidentally make a black hole with the Large Hadron Collider that would runaway out of control we would not be able to stop it . We scientists would have tampered with the murky depths of Nature and awoken a monster we could not control . Naughty scientists that we are . The LHC has been colliding away at unprecedented energies and last time I checked you can too click here we’re . ok I just realized something . Now we do have a runaway black hole But it was created by naughty engineers , tampering with the murky depths of Nature and awakening a monster they cannot

  • Physicists hold first international particle accelerator conference

    Updated: 2010-05-24 16:27:53
    This week hundreds of accelerator physicists have gathered in Kyoto, Japan, to take part in the first International Particle Accelerator Conference, taking a step toward the practices of their detector-building colleagues.

  • US LHC Blog Meta-Blogs and New Physics

    Updated: 2010-05-24 15:35:49
    Follow us : on US LHC Blogs Home Meta-Blogs and New Physics Posted by Zachary Marshall on 24 May 2010 at 09:35 am Hi there First , hello to the MIT Tech Review who made me famous for about 15 seconds this month . That’s one of my Facebook comment replies Singhal is pointing at below and hi there Facebook users It struck me when I saw that how strange the spread of information is , and how much information we read in a heavily digested format in a typical day Meanwhile , the LHC is running as normal . No news is good news , for the moment . If you want to hear about some possibly exciting physics , I highly recommend the NYT article on a possible hint of new physics from the Tevatron . They do a pretty good job explaining things there , so I won’t confuse you any further . There does seem

  • Must read papers of the week

    Updated: 2010-05-22 01:07:08
    The Gravity Research Foundation announced the results of the 2010 competition. Here are the results.

  • prediction/observation

    Updated: 2010-05-21 18:22:45
    prediction: that you’d be able to derive quantum physics from number theory observations: from

  • Bespoke Life

    Updated: 2010-05-20 22:16:16
    Craig Venter and colleagues have achieved a remarkable milestone: they designed a genome, and brought it to life. More specifically, they’ve synthesized a chromosome consisting of over a million DNA base pairs, and implanted it in a bacterial cell to replace the cell’s original genome. That cell then reproduced, giving birth [...]

  • The ATLAS Experiment: Popping up next month across North America (and on Tuesday in NYC)

    Updated: 2010-05-20 19:59:19
    The world's first Large Hadron Collider pop-up book has gotten a makeover for North American readers. The silver edition of "Voyage to the Heart of Matter" will be available in the United States and Canada starting in June. New York City-area LHC-philes can get a sneak preview of the book and learn more about the LHC at an event May 25 at the New York Academy of Sciences.

  • US LHC Blog The sound of the little bang

    Updated: 2010-05-19 15:06:43
    Follow us : on US LHC Blogs Home The sound of the little bang Posted by Christine Nattrass on 19 May 2010 at 09:06 am A couple of my friends came up with this video that shows you what a heavy ion collision sounds” : like embedded by Embedded Video YouTube DirektThe sound of the little bang They base the sound on a power spectrum derived from measurements at RHIC . The discussion is about the Relativistic Heavy Ion Collider , but everything they say is also true for the LHC . You can find a great discussion of this on their web page 1 Comment One Response to The sound of the little bang” on 20 May 2010 at 12:32 pm Richard Mitnick Crunching for LHC home , I have a work unit 23 hours to completion , I have four hours left with a completion date of 5.21.10, so I think I will make . it This is

  • Fermilab Experiment Explains How We Exist

    Updated: 2010-05-19 12:49:27
    “In a mathematically perfect universe, we would be less than dead; we would never have existed

  • US LHC Blog Matter and anti-matter

    Updated: 2010-05-19 03:48:33
    Follow us : on US LHC Blogs Home Matter and anti-matter Posted by Jake Anderson on 18 May 2010 at 09:48 pm Recently the D0 collaboration at the Tevatron announced an interesting result . Having come from the BaBar experiment and worked on CP violation , I found it exciting . Our universe is dominated by matter . It’s everywhere and there is almost no anti-matter to be found . This is one of the principle questions in our sub-atomic understanding of the universe . The answer to this was put forward many years ago by Sakharov there has to be CP violation , meaning that the swapping a particle with its anti-particle and looking at the interaction in a mirror can’t be the same as the . original CP violation was discovered several years ago and has already won Nobel prizes . The B-factories

  • Fermilab scientists find evidence for significant matter-antimatter asymmetry

    Updated: 2010-05-18 19:25:34
    Scientists of the DZero collaboration at the Department of Energy's Fermi National Accelerator Laboratory announced Friday, May 14, that they have found evidence for significant violation of matter-antimatter symmetry in the behavior of particles containing bottom quarks beyond what is expected in the current theory, the Standard Model of particle physics.

  • Neutrinos: a fishy explanation

    Updated: 2010-05-18 19:13:51
    Collaboration members for the NOvA neutrino experiment held public tours of the future site of the NOvA detector facility the weekend of Minnesota's annual Governor's Fishing Opener. Aside from proximity of the site to the opener, held on Lake Kabetogama, does the experiment have anything to do with fishing? Maybe. Fishing guide Frank House and physicist Mark Messier explain.

  • My Favorite Silly Function

    Updated: 2010-05-18 18:19:59
    In today’s link roundup, Uncertain Chad points to a new digital library of mathematical function. As a huge, huge fan of Abramowitz & Stegun (which can now be downloaded as a PDF, if you would rather not have it sitting majestically on your shelf), I am thrilled. Sometimes you’ll be happily calculating along, [...]

  • US LHC Blog The cost of money

    Updated: 2010-05-18 11:35:50
    Follow us : on US LHC Blogs Home The cost of money Posted by Ken Bloom on 18 May 2010 at 05:35 am Now , here is a plot to make a principal investigator : happy It is true that recent concerns about the sovereign debt in Greece is leading to uncertainties in financial markets that could hold back economic recovery around the world , which is hardly good . But one side effect has been the strengthening of the dollar against European currencies such as the Swiss franc CHF and that is good news for US people working at . CERN CERN does all of its business in CHF and the costs of building and operating the experiment are calculated in CHF . However , US funding agencies of course distribute research funding in dollars . This gives the US LHC research program and researchers at US universities a

  • An Exciting Asymmetry?

    Updated: 2010-05-18 09:11:12
    Skip to content Asymptotia Greetings An Exciting Asymmetry Published by Clifford on May 18, 2010 in cosmology science and work A big mystery in physics is why there is more matter than anti-matter . Of course , which we call the matter and which we call the anti-matter” is a matter of convention . Take your pick . It is hoped that there is some mechanism in the laws of physics at a very basic level concerning particle interactions that will become apparent that explains it . It’s also hoped that the mechanism itself might have some understandable origin too . The mechanism would operate in the first tiny fractions of a second of the universe’s life when the primordial soup of particles and antiparticles created from , roughly speaking , the energy of the big bang began to cool down as the

  • Minnesota governor visits NOvA site

    Updated: 2010-05-18 02:29:59
    On Saturday, May 15, enthusiasts headed north to the annual Governor's Fishing Opener, the first day of the fishing season. On Friday, Minnesota Gov. Tim Pawlenty stopped to visit Minnesota residents and visitors interested in a different type of catch: neutrinos.

  • US LHC Blog LHC Physics News

    Updated: 2010-05-17 22:40:22
    Follow us : on US LHC Blogs Home LHC Physics News Posted by Zachary Marshall on 17 May 2010 at 04:40 pm By special request , here is an update on how the physics and machine are doing . Hope it helps Any results or new physics hints We don’t yet have enough data to see much new physics . Unless it’s something really strange , we expect only one interesting” event for every thousand million collisions we see . We’ve seen hundreds of millions of collisions now , but it’s unlikely that we’ll say anything definitive until we’ve seen quite a bit . You can see my previous posts about being careful and errors for some of the reasons . why As for the results we have seen , we’re progressing well . I liked the way one of my collaborators put it : a march through the history of physics . We’ve gone

  • US LHC Blog Back to Europe and Flying Comfortably

    Updated: 2010-05-17 07:01:49
    , Follow us : on US LHC Blogs Home Back to Europe , and Flying Comfortably Posted by Mike Anderson on 17 May 2010 at 01:01 am After a short stay in the US , I have returned back to . CERN I flew on a Boeing 767 for about 9 hours . That was not a comfortable flight . An Airbus A330 has much more leg room . Also , on the Airbus , each seat has it’s own personal screen to select from a couple dozen movies and shows to watch , whenever you . want The science of a nicer airline flight isn't so . complicated Airplanes could be more comfortable , but there are things you can do yourself to make trips better . The best thing I ever did to make all my flights more comfortable was to buy noise-canceling . headphones I was skeptical of noise-canceling headphones at first . I didn’t have any friends

  • Looking at the Galaxy Zoo with (gravitational) lenses

    Updated: 2010-05-14 19:00:26
    Can you tell a gravitational lens from a spiral galaxy? With an expansion of the Galaxy Zoo citizen science project, you can try your eye at lens identification, thanks in part to the efforts of Phil Marshall at SLAC and Stanford's Kavli Institute for Particle Astrophyics and Cosmology.

  • US LHC Blog Congratulations Dr Dale

    Updated: 2010-05-13 04:32:34
    , . Follow us : on US LHC Blogs Home Congratulations , Dr . Dale Posted by Ken Bloom on 12 May 2010 at 10:32 pm Last weekend was graduation weekend here at Nebraska did any of you notice that we have a new blogger with UNL ties If you want to see a bunch of happy people , go to graduation I can’t think of anything to be glum about there . This was a particularly happy graduation for me , as my first PhD student , Dale Johnston , received his diploma . Equal credit , if not more , goes to my colleague Aaron Dominguez we co-advise graduate students . Dale’s thesis was on the Higgs search at D0 his work was a piece of the puzzle in the first exclusion limits on a high-mass standard-model Higgs . At the ceremony I got to help put his doctoral hood on him the first time I’ve done such a thing ,

  • National Lab Day brings Fermilab physics to students

    Updated: 2010-05-12 18:06:02
    Twenty Fermilab volunteers gave hands-on presentations in area elementary and high schools last week to celebrate National Lab Day. “It was all really interesting,” said student Mary LeDoux. “I had heard some of the information about science done at Fermilab before but it really helps to hear it all again because these are very deep concepts.”

  • US LHC Blog I Wrote That

    Updated: 2010-05-11 12:35:40
    Follow us : on US LHC Blogs Home I Wrote That Posted by Zachary Marshall on 11 May 2010 at 06:35 am This is one of the things most confusing to folks outside of high energy particle physics . Our papers have 3000 authors The ATLAS author list is about 17 pages long depending on the formatting . Sometimes there are even fewer than 3000 words in the paper surely we aren’t suggesting that different people cross t’s and dot i’s Well , what does it mean to be an author” of a paper In our case , it means that you made a contribution to the work described in the paper . Of course , if you built part of the detector , and that part of the detector is used in the analysis , then you should be a co-author on the paper And if you were responsible for running that part of the detector during one of

  • US LHC Blog The Z boson and resonances

    Updated: 2010-05-11 03:55:34
    Follow us : on US LHC Blogs Home The Z boson and resonances Posted by Flip Tanedo on 10 May 2010 at 09:55 pm Hello everyone Let’s continue our ongoing investigation of the particles and interactions of the Standard Model . For those that are just joining us or have forgotten , the previous installments of our adventure can be found at the following links : Part 1 Part 2 Part 3 Up to this point we’ve familiarized ourselves the Feynman rules—which are shorthand for particle content and interactions—for the theory of electrons and photons quantum electrodynamics , or QED We then saw how the rules changed if we added another electron-like particle , the muon μ . The theory looked very similar : it was just two copies of QED , except sometimes a a high-energy electron and positron collision

  • Good Sentences

    Updated: 2010-05-10 16:13:45
    Timothy Ferris, in The Science of Liberty: In 1900 there was not a single liberal democracy in the world (since none yet had universal suffrage); by 1950 there were twenty-two. Tyler Cowen at Marginal Revolution has an ongoing series of posts in which he highlights “good sentences.” At first the conceit bugged me a bit, as [...]

  • US LHC Blog Making Improvements

    Updated: 2010-05-10 14:58:55
    Follow us : on US LHC Blogs Home Making Improvements Posted by Jake Anderson on 10 May 2010 at 08:58 am The LHC has only had collisions for a little over a month now , and I’m as excited as the next scientist about the new data that is coming in . With it we will hopefully be able to push existing boundaries in new ways . The detectors are running well and I think that is a testament to all of the years that went into their development . Even if some of those years weren’t planned . For my first US LHC blog post , I want to write about something I’ve been working on . Even though things are looking rosy right now , I’m in the business of improvement . I work on the hadronic calorimeter HCAL for short for the CMS detector . It is a large heavy detector system charged with trying to stop any

  • US LHC Blog Thanks Mom

    Updated: 2010-05-10 04:43:56
    , Follow us : on US LHC Blogs Home Thanks , Mom Posted by Christine Nattrass on 09 May 2010 at 10:43 pm Since today is Mother’s Day at least in the US I thought I’d write a post about my mom and the role she had in me ending up where I am . now My mom is a professor of educational psychology at the University of Nebraska at Lincoln . She had two children while she was working on her PhD . Neither my brother nor I were exactly easy children to raise . Mom turned in some of her papers with trucks drawn all over them because my brother drew trucks on everything . My mother was in Georgetown , KY doing her practicum as a school psychologist in Appalachia when truancy laws and child abuse laws were just beginning to be enforced not exactly an easy job . She worked with kids who needed to be

  • US LHC Blog Errors Not in Your Favor

    Updated: 2010-05-09 12:07:53
    Follow us : on US LHC Blogs Home Errors Not in Your Favor Posted by Zachary Marshall on 09 May 2010 at 06:07 am It’s something we physicists don’t talk about much : what happens if we’re wrong I told you a little bit about being careful about what we say and why it takes so long to say anything before . Almost no complete analysis is done perfectly on the first try . Physicists make mistakes just like anybody else , whether it’s simply a bug in our code or something more serious . The problems that we encounter are usually the most interesting part of the work , though When I’m grappling with understanding some physics , I feel less like a code . monkey We show each other results constantly I probably show various people several dozen plots each week . Some of them make sense , and I’m

  • Congratulations to Heywood and Moira!

    Updated: 2010-05-07 05:43:38
    It’s that time of year again. Young graduate students, having toiled for several years at the feet of Science, are kicked out of the nest to take their places among the ancient and honorable community of scholars. If you will forgive the mixed metaphors. This week we had a double-decker celebration: both Heywood [...]

  • LHC Update: Bing Bang Machine Could Confirm or Disprove String Theory

    Updated: 2010-05-06 04:59:27
    Today’s CERN LHCC meeting had a wide-range of reports about how the machine is doing (1 nb-1 now, 10 nb-1 over the next 5 weeks), what the experiments are seeing (charm, Ws), and what physics might be possible with the 2010-11 run (limits on some supersymmetric and other more exotic scenarios). Reuters this evening reports on [...]

  • Large Hadron Collider, part deux. The Higgs.

    Updated: 2010-05-02 23:03:40
    It’s been a leeettle while, but continuing on from my LHC I post, I’m here to give you s

  • CERN - Update

    Updated: 2010-05-02 12:59:31
    CERN It’s time for physics at the LHC: http://ow.ly/1Fevm … as the machine continues to

  • What Are You Reading?

    Updated: 2010-04-25 23:40:15
    So, indeed, what are you reading? This wall asks the question at the LA Times Festival of Books, and I enjoy looking at what people have written, humourous remarks and all. (Click it for quite large version with readable scribbles.) Oh, me? What am I reading right now? Actually, I'm [...]

  • The Higgs Boson Anthology: Yours to Keep and Share

    Updated: 2010-04-24 15:35:41
    All this week, some amazing writers have come together to bring you the Higgs Boson Anthology, a ser

  • World's Highest Energy Particles (and No Black Hole Apocalypse)

    Updated: 2010-04-22 23:00:28
    Seven TRILLION electron volts! (7,000,000,000,000 eV) Or, 7 teraelectron volts. (7 TeV) Holy bug-zap

  • New Luminosity Record At The Tevatron

    Updated: 2010-04-17 09:03:30
    This is to inform you of the new luminosity record set today by the Tevatron collider at Fermilab. The machine has been working excellently, improving its performance as the machinists found ways to obtain higher stacks of antiprotons, reducing inefficiencies in the transport of the beams from one accelerator to the other in the injection process, or finding better beam tunes. A painstaking work that brought increasing returns, it seems. read more

  • Are you conCERNed about microscopic blackholes eating your planet?

    Updated: 2010-04-15 20:55:12
    Then follow @CERN and receive tweets about Large Hadron Collider activity. Be amongst the first to k

  • US LHC Blog Rediscovery kinda

    Updated: 2010-04-11 02:12:34
    Follow us : on US LHC Blogs Home Rediscovery kinda Posted by Zachary Marshall on 10 Apr 2010 at 08:12 pm You’ve heard from us a few times that the first thing ATLAS or CMS will have to do is rediscover the physics that we’re pretty sure is there . ATLAS made a big step in that direction this week with the identification of the first W boson candidate events First candidate W boson decaying to a muon and neutrino First W boson candidate decaying to an electron and neutrino This is a pretty big deal for us . I think Flip will tell you more about the weak force in his next blog , but here’s the very quick version . A W boson can decay to an electron and a neutrino , or a muon and a neutrino , among other things we have one of each The electrons are those things that orbit a nucleus in an atom

  • US LHC Blog Being Careful

    Updated: 2010-04-10 20:11:24
    Follow us : on US LHC Blogs Home Being Careful Posted by Zachary Marshall on 10 Apr 2010 at 02:11 pm Physicists try to be very clear about what they say believe it or not If we claim to have discovered” something , then millions , or even billions , of dollars could be put towards studying it . We’d better be sure Here are a couple of nice pictures we can talk about . Both are taken from the Particle Data Group First is the neutron lifetime how long it takes a neutron with protons , neutrons make up the nuclei in every atom in the universe to decay . Second is the W-boson mass a boson that is a part of the weak force” that controls some decays of nuclei , for example . And both of these are measurements as they have evolved with time Lifetime of the neutron The mass of the W boson You can

  • The future strikes back

    Updated: 2010-04-09 15:11:18
    Cnet reported 9 days ago: A would-be saboteur arrested today at the Large Hadron Collider in Switzer

  • US LHC Blog 2009 April

    Updated: 2010-04-08 10:53:57
    Follow us : on US LHC Blogs Home April 2009 Monthly Archive Changing of the Guard Posted by Peter Steinberg on 30 Apr 2009 Tagged as : Uncategorized A nice article on the changing of ATLAS leadership in the CERN Courier . It really gives a sense of the sustained commitment that it has taken to make a huge project like ATLAS become a . reality I am very proud to have helped the collaboration to construct ATLAS . Twenty years ago we could only imagine the experiment in our dreams and now it exists , 8221 says Jenni . I could lead the collaboration for so long because I was supported by very good ATLAS management teams where the right people , such as Fabiola Gianotti , Steinar Stapnes , Marzio Nessi and Markus Nordberg over the past five years , were in the right places . 8221 It’s also interesting to find out in the CERN courier that your own experiment is a lot larger than you might have realized i.e . it’s officially 3000 people I can’t say I’ve ever met even a fraction of them myself No Comments Obama at the National Academy Posted by Peter Steinberg on 27 Apr 2009 Tagged as : Uncategorized President Obama addressed the National Academy this morning . I missed the telecast but

  • US LHC Blog running

    Updated: 2010-04-08 10:53:54
    Follow us : on US LHC Blogs Home Posts Tagged with running’ Running , CRuZeT II , and Football Posted by Pam Klabbers on 09 Jun 2008 at 12:09 pm Tagged as : Uncategorized It was hectic week , though only four days long we had family visiting up until very early Tuesday morning Every day I had a meeting of some sort . I had a couple of slides to prepare . A relay race to run in and train” for see Monica’s post BTW that is me second from the left , in the womens’ team with matching black shirts which definitely improved our running and late Thursday until 10:00 pm doing a study see this post about a previous one This week we spend another short spell running our detector for five days , like I described here I am grateful I have no shifts especially the 11pm-7am and that the whole thing ends on Saturday afternoon . Just in time to join my husband for a two-day late anniversary dinner in downtown Geneva . Three years and counting though I have known him much longer since 1996 So there is more hardware to prepare tomorrow morning and to check out . By the way that stands for Cosmic Run at Zero Tesla . Pronounced Crew-zay , due to the French influence around . here On top of it all ,

  • US LHC Blog schedule

    Updated: 2010-04-08 10:53:47
    Follow us : on US LHC Blogs Home Posts Tagged with schedule’ Sunny Sunday Posted by Regina on 25 Oct 2009 at 02:58 pm Tagged as : Uncategorized This weekend the weather has been playing tricks on me in New York . I intended to go camping upstate with some friends , but after a valiant attempt on Friday evening Saturday morning , we decided to take our soggy sleeping bags and head back to Long Island . It literally rained all day , night and the next morning which being from Colorado I’ll never get used to . I decided to share this with you on a Sunday afternoon sitting in my apartment looking out my window at : this A room with a view The gods must be conspiring against me to make sure I get work done this weekend So I thought I’d update everyone as to the status of the LHC . My email’s been a buzz with information . So far all the repairs have been completed and the entire ring is back at the operating temperature of 1.9 K . The schedule is still on to start circulating beams in mid November with low energy collisions soon to follow . Although we probably won’t be at the full energy this year , any collisions would be an amazing . milestone There’s also a new LHC First physics

  • US LHC Blog calibration

    Updated: 2010-04-08 10:53:47
    Follow us : on US LHC Blogs Home Posts Tagged with calibration’ The Joys of Submission Posted by Regina on 03 Nov 2009 at 09:41 am Tagged as : Uncategorized A couple of months ago I blogged about how at ATLAS we’re using cosmic rays to study the detector . Well with data impending , the work that my group and I have been doing was submitted to become internal ATLAS document last week . This process was new to me so I thought I’d share . Not every plot we make is available for public viewing . Our notes” ATLAS documents come in two flavors : one that is available for public view , and one that isn’t . The ones that aren’t for public view don’t really have any special information for ATLAS eyes only they just don’t require that all the plots included are approved by the group they’re associated with . For example , the study I did was on the uniformity of the Liquid Argon LAr Calorimeter , so the LAr group has to approve the plots in other words , make sure they aren’t confusing , that things are labeled properly , that it’s relevant etc The process of writing this note took about 5 months . There were at least 5 direct authors and about 10 total people reading and giving input

  • US LHC Blog startup

    Updated: 2010-04-08 10:53:44
    Follow us : on US LHC Blogs Home Posts Tagged with startup’ Running with Scissors Posted by Mike Anderson on 03 Feb 2010 at 11:19 am Tagged as : Uncategorized We are at the stage now where the ability to crank up the intensity and energy of the LHC beams to full power is at hand . We’re like a toddler that just learned to walk : the urge to run is present and exciting , but the probability of banging our head would be high It has been decided through many meetings , and with considerations of experts on the front lines , that the highest , safest energy the beams can be run at without major repairs is 3.5 TeV per beam with an instantaneous luminosity of 2 10 32 cm 2 sec . The LHC was designed for 7 TeV per beam and an intensity of 10 34 cm 2 sec . More intensity means more proton collisions , and more energy means high probability of interesting collisions . Unfortunately , high intensity and high energy also means high risk of accidents like the one in Sep 2008 With that in mind , management decided to balance safety of the machine with the drive to explore and make discoveries . So , the current plan sets a goal of collecting a specific amount of data , 1 fb 1 before shutting

  • US LHC Large Hadron Collider

    Updated: 2010-04-08 10:53:40
    X Site Search close window About the LHC About the LHC Accelerator Experiments ALICE ATLAS CMS LHCb LHCf TOTEM International Collaboration LHC Safety Questions for the Universe The US and the LHC The US and the LHC Accelerator Experiments ALICE ATLAS CMS LHCb LHCf TOTEM Computing Collaborating Institutions Remote Operations US LHC Blogs Blogger Bios Teachers and Students Images Accelerator Images ALICE Images ATLAS Images CMS Images LHCb Images LHCf Images TOTEM Images People Images Computing Images Resources Resources Fact Sheets Posters Images FlashForward Virtual Visits Lecture Series Angels Demons LHC Lecture Series News Contacts Search LHC Virtual Visits US LHC Blogs Latest : Posts Main Blog Page Blogger Bios RSS Feed Follow us on Twiiter The US at the Large Hadron Collider Discoveries at the Large Hadron Collider at CERN near Geneva , Switzerland will open new vistas on the deepest secrets of the universe , stretching the imagination with new forms of matter , new forces of nature , and new dimensions of space . This site provides general information about the Large Hadron Collider and detailed information about American participation in the LHC accelerator and experiments .

  • US LHC USLHC on Twitter

    Updated: 2010-04-08 10:53:40
    Skip past navigation On a mobile phone Check out m.twitter.com Skip to navigation Skip to sign in form Login Join Twitter Hey there USLHC is using . Twitter Twitter is a free service that lets you keep in touch with people through the exchange of quick , frequent answers to one simple question : What's happening Join today to start receiving USLHC's . tweets Already using Twitter from your phone Click here USLHC US LHC blog post : Happy International Women’s day http : bit.ly 9M8HnH about 19 hours ago via twitterfeed Great description of what might be discovered at the LHC from MIT physics prof Frank Wilczek in Project Syndicate : http : ow.ly 1fuf3 about 22 hours ago via HootSuite US LHC blog post : International Women’s Day http : bit.ly bhitC3 about 24 hours ago via twitterfeed Celebrate progress of women in particle physics on International Women's Day . Live LHC control room images and more at http : ow.ly 1fuau 2:54 AM Mar 8th via HootSuite US LHC blog post : Learning at CMS http : bit.ly aSeSYA 12:53 PM Mar 7th via twitterfeed US LHC blog post : More Feynman Diagrams http : bit.ly bIgEt4 11:12 PM Mar 6th via twitterfeed US LHC blog post : The Beam is Back with Sound http :

  • US LHC Blog discoveries

    Updated: 2010-04-08 10:53:27
    Follow us : on US LHC Blogs Home Posts Tagged with discoveries’ Sorry , Higgs , I’m just not that in to . you Posted by Regina on 19 Jan 2010 at 11:16 am Tagged as : Uncategorized It’s an exciting time for your humble LHC blogger . She may just have a thesis topic So what does that mean I often times wonder that myself With the recent success and in anticipation of high energy collisions and therefore data it’s time to figure out what can be found and what can’t given the projected amount of data . We’re going to be running at 7 TeV for the first part of the year , then 10 TeV the latter half Now lots of people are doing cross sections measurements which is a different beast than searches see below Cross section measurements take a particle that we know Zs and Ws for example and check to see if we measure what we predict . This is very important to do and I’m over simplifying but that’s the basic idea . Despite it’s importance , I personally feel like if I’m working on the highest energy accelerator in the world , I’d at least like to try to do a particle . search The Cross Section Beast This isn’t a completely trivial question because ever since the Tevatron turned on , theorists

  • US LHC Blog upgrade

    Updated: 2010-04-08 10:53:21
    Follow us : on US LHC Blogs Home Posts Tagged with upgrade’ ATLAS Upgrade Posted by Vivek Jain on 06 Nov 2009 at 11:48 am Tagged as : Uncategorized You might think it odd that work has already started to upgrade parts of the ATLAS detector , even before the LHC has started running As I wrote in a previous post one of the key operating parameters for the LHC is luminosity , i.e . the beam intensity . The design calls for a luminosity of 10 34 cm 2 sec this means that if you look at the beam head-on , it will contain 10 34 protons sec spread over an area of 1 sq . cm . In reality , each beam consists of 2800 bunches each containing 10 11 protons and about 0.03 mm in radius . Two such bunches collide every 25 nanoseconds , i.e . 40 million times second this is known as a bunch . crossing The number of events that we collect is directly proportional to the luminosity . I had also written that the most common type of events that occur have a very large rate . What this implies is that when two proton bunches collide , most of the time we produce these ordinary” events . For instance , when the luminosity is 10 34 at each bunch crossing we get an average of 23 such events they are easy

  • US LHC Blog installation

    Updated: 2010-04-08 10:52:50
    Follow us : on US LHC Blogs Home Posts Tagged with installation’ The dice have been cast Posted by Freya Blekman on 23 Sep 2008 at 12:52 pm Tagged as : Uncategorized This just came in from the CERN : directorate LHC re-start scheduled for 2009 Geneva , 23 September 2008. Investigations at CERN following a large helium leak into sector 3-4 of the Large Hadron Collider LHC tunnel have indicated that the most likely cause of the incident was a faulty electrical connection between two of the accelerator’s magnets . Before a full understanding of the incident can be established , however , the sector has to be brought to room temperature and the magnets involved opened up for inspection . This will take three to four weeks . Full details of this investigation will be made available once it is . complete Coming immediately after the very successful start of LHC operation on 10 September , this is undoubtedly a psychological blow , said CERN Director General Robert Aymar . Nevertheless , the success of the LHC’s first operation with beam is testimony to years of painstaking preparation and the skill of the teams involved in building and running CERN’s accelerator complex . I have no doubt

  • US LHC Blog 2009 December

    Updated: 2010-04-08 10:52:50
    Follow us : on US LHC Blogs Home December 2009 Monthly Archive Security Theater Posted by Mike Anderson on 29 Dec 2009 Tagged as : Uncategorized The attempted terror attack on a flight from Amsterdam to Detroit was basically the same flight I had taken less than two weeks prior on my way home from . CERN Already my least favorite part of international collaboration was traveling by air . Somehow , I imagine my future flights to Genève are going to involve even more unpleasant security checks and . rules There has been a lot said on the ridiculousness of many airline rules xkcd : A laptop battery contains roughly the stored energy of a hand grenade I have little to add , except to say that having spent a lot of time in aiports and on airlines myself , I agree that rules like prohibiting liquids adds little to our safety when . flying Bruce Schneier summed it up nicely recently in Is aviation security mostly for show Despite fearful rhetoric to the contrary , terrorism is not a transcendent threat . A terrorist attack cannot possibly destroy a country’s way of life it’s only our reaction to that attack that can do that kind of damage . The more we undermine our own laws , the more we

  • US LHC Blog 2009 November

    Updated: 2010-04-08 10:52:42
    Follow us : on US LHC Blogs Home November 2009 Monthly Archive The World’s Highest-Energy Accelerator Posted by Seth Zenz on 29 Nov 2009 Tagged as : Uncategorized Via Twitter CERN : reports A new record . Both beams in LHC reach 1.18 TeV at 00:42 on 30 . November That makes the Large Hadron Collider the highest-energy accelerator in the world It will be the world’s highest energy collider once it brings the beams together at that energy . I’m not quite sure when that will be the LHC team is making such fast progress that it’s hard for the experiments even to keep up with what their plans are but I bet it will be soon . enough 2 Comments Local news Posted by Ken Bloom on 27 Nov 2009 Tagged as : Uncategorized Admittedly , it is a little harder to follow all the LHC excitement if you are here in the US rather than at CERN . The announcement of first collisions on Monday came while I was teaching my class , and I’ve been trying to piece together the whole story by talking to our people over there and reading the slides from various meetings . Of note was a public meeting at CERN yesterday yes , Thanksgiving Day , another impediment if you are in the US with presentations from Steve

  • US LHC Blog astrophysics

    Updated: 2010-04-08 10:52:28
    Follow us : on US LHC Blogs Home Posts Tagged with astrophysics’ Can We Point” the LHC , Too Posted by Seth Zenz on 28 Jan 2009 at 10:31 am Tagged as : Uncategorized The Bad Astronomy blog is publicizing a chance to choose what the Hubble Space Telescope looks at The basic idea is that there’s going to be an internet vote between six objects that Hubble has never looked at , and Hubble will be pointed at the winner and send out pictures of it by April . It seems like a fun way to get the public to learn more about , and feel more involved in , the Hubble . project I’ll let you read more details at one of the links above , but I have another question to consider : can we do something similar with the LHC That is , could we put up some kind of page where people could vote on what kind of physics we would study over the course of some particular week Maybe a choice between searching for Supersymmetry , or a high-mass Higgs boson , or a low-mass Higgs boson At first glance , the answer would seem to be no . 8221 We obviously have no control over what kind of physics happens when the protons of the LHC collide we just look at what comes out . And it seems unlikely that any physicist

  • US LHC Blog trigger

    Updated: 2010-04-08 10:52:21
    Follow us : on US LHC Blogs Home Posts Tagged with trigger’ Mountains of data Posted by Vivek Jain on 02 Oct 2009 at 10:38 am Tagged as : Uncategorized In a previous post Regina gave an overview of triggers . Let me add to that and give some . numbers When the LHC is operating at design parameters , we will have collisions every 25 ns , i.e . at a 40 MHz rate 40 million second Obviously , we can’t collect data at the rate , so we pick the interesting events , which occur infrequently . A trigger is designed to reject the uninteresting events and keep the interesting ones your proverbial needle in the haystack” , as you will see below . The ATLAS trigger system is designed to collect about 200 events per second , where the amount of data collected for each event is expected to be around 1 Mbyte for comparison , this post corresponds to about 4-5 kilobytes Before I get to the numbers of events that we will collect , let me first explain a couple of concepts cross-section of a particular process and luminosity . Cross-section is jargon basically , it gives you an estimate of the probability of a certain kind of event happening . Luminosity is a measure of the intensity” of the beam .

  • US LHC Blog funding

    Updated: 2010-04-08 10:52:20
    Follow us : on US LHC Blogs Home Posts Tagged with funding’ Supporting science at home and abroad Posted by Flip Tanedo on 25 Nov 2009 at 03:02 pm Tagged as : Uncategorized This Thanksgiving particle physicists have a lot to be thankful for , not the least of which have been the exciting progress with collisions at the . LHC Happy ATLAS Scientists , Image from the ATLAS press . release While images of happy LHC-ers made a big splash in the media , somewhat understated in the news was President Obama’s reaffirmation of his commitment to science and science education through the a new Educate to Innovate” campaign whose goal is to make American science and mathematics education second to none . Here’s the video of the announcement and the transcript embedded by Embedded Video YouTube Direkt If I may interject some personal opinion , a concerted effort to elevate STEM” science , technology , engineering , and math” education in the US is as important if not more so to the sustained well-being of American science as the LHC . The president also made the key point that this is important not just for the sake of science itself , but also for the country as a : whole The key to meeting

  • US LHC Blog higgs

    Updated: 2010-04-08 10:52:13
    Follow us : on US LHC Blogs Home Posts Tagged with higgs’ APS Meeting as Higgsless as the Standard Model Posted by Edgar Carrera on 19 Feb 2010 at 05:25 pm Tagged as : Uncategorized I came back from Washington D.C . a couple of days ago . I was attending the APS April” Meeting yes it took place on February which was held at the Marriot Wardman Park hotel . It was fun , and I got to give a quick presentation about the analysis that I was working on earlier last year , in preparation for physics analysis at CMS . It was based on simulation and was about exploring electroweak symmetry breaking EWSB scenarios beyond the Standard Model . In particular , Higgsless scenarios like Technicolor models or the Minimal Higgsless . Model It was scheduled that professor Peter Higgs one of the proponents of the Standard Model EWSB mechanism would recieve the prestigious Sakurai Prize for theoretical physics along with many other great theorists that were involved in developing such formalism . I was really looking forward to see professor Higgs giving one of the acceptance talks , but unfortunately he did not make it to the APS meeting on Monday : it was a Higgsless APS meeting As Higgsless as the

  • US LHC Blog www

    Updated: 2010-04-08 10:51:53
    Follow us : on US LHC Blogs Home Posts Tagged with www’ Ghost Muons and Brown Muck : The Role of the Physics Blogosphere Posted by Seth Zenz on 07 Nov 2008 at 11:36 am Tagged as : Uncategorized I’ve been thinking about it since this yesterday , and I’ve finally decided to take the plunge : I’m going to say a few words about the blogosphere debate on the CDF ghost muon” paper I know that , by the demanding standards of the Internet , this is old news the posts that started the mess were an eternity ago , last week In my defense , I have been traveling for the entire time , to Berlin and a few cities in Poland , in what now seems a confused blur of night trains and buses . And in any case , I think my comments are universal enough that they’re worth making even if the debate is starting to die . down I have relatively little to say about the paper itself , which was submitted last week but is not yet published . Very briefly , the paper discusses a series of particle collisions seen by the CDF detector at the Tevatron Collider at Fermilab that appear to possibly contain muons which decayed from a very long-lived unknown particle or maybe there’s a less dramatic explanation , and

  • CMS Media

    Updated: 2010-04-08 10:51:44
    Home Contact us Links CMS Outreach CERN CERN European Organization for Nuclear Research For CMS Users Home Physics Detector Collaboration Timeline Media Education Newsletter Media CMS Eye CMS : current status from Camera 7 The current time at Point 5 is : this page will reload every 5 minutes This image shows the Central Services area of the CMS Surface Control Room at LHC Point 5 near the village of Cessy in France . Copyright CERN 2008 CMS Outreach

  • US LHC Blog tevatron

    Updated: 2010-04-08 10:51:39
    Follow us : on US LHC Blogs Home Posts Tagged with tevatron’ New Higgs search results from the Tevatron Posted by Ken Bloom on 19 Nov 2009 at 12:32 pm Tagged as : Uncategorized At this week’s Hadron Collider Physics Symposium the CDF and D0 experiments at the Tevatron announced their newest results on the search for a standard-model Higgs boson . You can find documentation from the two experiments here and this is what the money plot” looks : like The mass range 163-166 GeV is excluded at 95 confidence level . Now , for comparison , here is what this plot looked like in : March At that time , the exclusion range was stated as 160-170 GeV . More data , but the excluded range got smaller Indeed so . However , the real figure of merit for the reach of the search is indicated by the dotted line on both plots , which indicates how well you expect to do . This is what is used to design the data analyses not what you get from the data themselves , as looking at the actual data can bias your results . As of March , we would have expected not to be able to exclude any Higgs production at all , and lucky or unlucky fluctuations made the data look more background-like than Higgs-like , and

  • US LHC Blog CMS

    Updated: 2010-04-08 10:51:38
    Follow us : on US LHC Blogs Home Posts Tagged with CMS’ Happy International Women’s day Posted by Edgar Carrera on 08 Mar 2010 at 04:41 pm Tagged as : Uncategorized If you had walked into the CMS control room P5 today 8th of March of 2010, you would have seen an almost only-women crew at the controls . It was my last day on-call for the CMS high level trigger system , so I had to attend the daily meeting at CMS P5.  It was fun to see an overwhelming number of . women I haven’t been paying much attention , and I don’t know the statistics , but I have the feeling that there’s usually a good mix of women and man in the control room . As a matter of fact , this past week when I was on-call and I had to go to P5 every day both run field managers were women and I guess they continue for this . week The fun part of today was that they managed to schedule women for 32 out of the 34 shift positions required to run the CMS experiment or at least that’s what I was told . I am sure those two other spots were not filled in with women because the women that can cover them are very busy . Like my boss , for example , who were supposed to be here for this day but couldn’t make it because she is

  • US LHC Blog 2008 December

    Updated: 2010-04-08 10:51:35
    Follow us : on US LHC Blogs Home December 2008 Monthly Archive Curveballs are Fun Posted by Seth Zenz on 19 Dec 2008 Tagged as : Uncategorized We’re not big fans of rigid hierarchy in academia , not even on big experiments like ATLAS with multifarious coordinators and project leaders . On the one hand , this means that nobody ever gives me orders but on the other hand , it does mean that there are a lot of people who can give me strong suggestions . 8221 And sometimes one of those people decides to throw me a curveball Friday was a day of two work days . First I worked a pretty normal eight hours debugging code , then spent the evening at a few holiday parties before heading to the ATLAS Control Room at 11 PM for an eight hour shift . After I arrived , while waiting for the expert running things to let me do my shift so he could go home and get some sleep , I found an email in my inbox which had been sent only that evening . It asked me to give a talk at the ATLAS Inner Detector-wide meeting about the activities of the Pixel group over the previous week . All of the work to be discussed had done by others rather than me , and some of it I hadn’t even been aware of and the talk was

  • US LHC Blog outreach

    Updated: 2010-04-08 10:51:33
    Follow us : on US LHC Blogs Home Posts Tagged with outreach’ ATLAS wakes up , blogs , and tweets Posted by Seth Zenz on 03 Mar 2010 at 12:35 am Tagged as : Uncategorized At last , the ATLAS Experiment has woken up and so has the ATLAS Control Room Blog The ATLAS Twitter account is running too No word on an official Facebook mirror . Maybe I’ll poke a few people about it . No Comments Particles to the People Posted by Mike Anderson on 22 Feb 2010 at 09:29 pm Tagged as : Uncategorized This weekend our department had a Physics Fair , free to the public , where hundreds of parents and kids came and learned about the research we’re involved in . There were grad students and professors available from many research groups including plasma , condensed matter , astrophysics , particle physics , and . more Hey that's my experiment I enjoyed interacting with the public and letting them know people from their community are involved in a project they’ve actually heard about in the news . Of course , many people who had heard of a hadron collider” , heard about it because of black hole” fear stories . Not that anyone was really afraid , it’s just that newspapers liked to make eye-catching ,

  • US LHC Blog black holes

    Updated: 2010-04-08 10:51:30
    Follow us : on US LHC Blogs Home Posts Tagged with black holes’ Particles to the People Posted by Mike Anderson on 22 Feb 2010 at 09:29 pm Tagged as : Uncategorized This weekend our department had a Physics Fair , free to the public , where hundreds of parents and kids came and learned about the research we’re involved in . There were grad students and professors available from many research groups including plasma , condensed matter , astrophysics , particle physics , and . more Hey that's my experiment I enjoyed interacting with the public and letting them know people from their community are involved in a project they’ve actually heard about in the news . Of course , many people who had heard of a hadron collider” , heard about it because of black hole” fear stories . Not that anyone was really afraid , it’s just that newspapers liked to make eye-catching , sensational headlines like shown here If that’s what it takes to get on the cover of some newspapers , I’ll take it . It’s a starting point , and at least gets people . talking We had a few things for kids to look at , including a cloud chamber to see particles from cosmic . rays Another thing we had for kids was a quark

  • US LHC Blog LHC

    Updated: 2010-04-08 10:51:23
    Follow us : on US LHC Blogs Home Posts Tagged with LHC’ Learning at CMS Posted by Edgar Carrera on 07 Mar 2010 at 03:33 pm Tagged as : Uncategorized Humans are very curious by nature we just love to learn . Maybe that’s what makes us the most successful mammals on earth . This need to learn is a common factor among all of us , with no exceptions . Physicist scientist however , are particularly curious and avid of knowledge , and maybe that is why we like what we do . A big plus of our job is that we rarely do the same thing every day . There is always something new to learn , a new idea to develop , new code to implement , etc . We are constantly doing things that no one has ever done before I took a block of 4  day data acquisition DAQ shifts during the last weekend Thu-Sat at CMS point 5 where all the action happens I was lucky to have a trainee who is also a good friend of mine . My mission was to prepare him to take DAQ shifts by himself and be able to run the whole CMS experiment that’s what DAQ shifters do , and that’s why it is so much fun My friend , as all of us , had to read and study the documentation about how to run the different applications that are used to run the

  • US LHC Blog CERN

    Updated: 2010-04-08 10:51:16
    Follow us : on US LHC Blogs Home Posts Tagged with CERN’ Memories of the first CMS collisions Posted by Edgar Carrera on 05 Dec 2009 at 07:10 am Tagged as : Uncategorized I happened to be on-call for the CMS High Level Trigger HLT system during the week all LHC experiments saw their first collisions , so here I describe after having some time to breath my . experience All the hardware subsystems in the CMS experiment have two kind of people taking care of operations . The ones in the front-line are the so-called shifters” , operators who sit in front of several computer screens in the control room and whose job is to monitor closely the performance of each component , and take rapid action in case something goes wrong . Each shift is usually of 8 hours and there is always someone doing this the operations are 24 7.  The other kind are the experts” , who are on-call 24 7 in case there is a major problem or a more involved task that needs to be done . For this first week , however , shifters and experts were intensively working together in the control room making sure everything works as . planned For software subsystems , like the HLT , there are also shifters , but who usually sit

  • US LHC Blog Symmetry

    Updated: 2010-04-08 10:51:15
    Follow us : on US LHC Blogs Home Posts Tagged with Symmetry’ Symmetry in Physcs , Pt . 4 Posted by Flip Tanedo on 06 Nov 2009 at 10:19 am Tagged as : Uncategorized Alright , it’s time to start wrapping things up a bit . I’ve been going on for some time now about how symmetries play a central role in our understanding of physics . Here’s a lightning : review In part 1 we thought about how the symmetries of space(time restrict the form of our . theories In part 2 we saw how antimatter comes from a discrete symmetry of spacetime Charge-Parity In part 3 we introduced internal symmetries that have nothing to do with spacetime , but that lead to a replication in the number of particles . This explains , 8221 for example , why there are three copies of the . electron Here’s a summary in graphical : form If you wanted a nice summary in the format of a nice TED talk , I know Mike . A is a fan then I recommend Marcus du Sautoy’s talk earlier this : year embedded by Embedded Video YouTube Direkt Now I’d like to go over some more formal results with far-reaching effects in physics , i.e . some advanced topics . 8221 These are usually things which are derived rigorously in successively more

  • US LHC Blogs

    Updated: 2010-04-08 10:51:12
    X Site Search close window About the LHC About the LHC Accelerator Experiments ALICE ATLAS CMS LHCb LHCf TOTEM International Collaboration LHC Safety Questions for the Universe The US and the LHC The US and the LHC Accelerator Experiments ALICE ATLAS CMS LHCb LHCf TOTEM Computing Collaborating Institutions Remote Operations US LHC Blogs Blogger Bios Teachers and Students Images Accelerator Images ALICE Images ATLAS Images CMS Images LHCb Images LHCf Images TOTEM Images People Images Computing Images Resources Resources Fact Sheets Posters Images FlashForward Virtual Visits Lecture Series Angels Demons LHC Lecture Series News Contacts Search Home The US and the LHC US LHC Blogs Latest : Posts Main Blog Page Blogger Bios RSS Feed Follow us on Twiiter US LHC Bloggers Mike Anderson Born in Wisconsin and raised in Pueblo , Colorado , I'm now a fifth-year graduate student working towards my PhD in particle physics . nbsp I'm involved with the Compact Muon Solenoid CMS detector located outside Cessy , France . nbsp The few months of the year I spend living in the French countryside for CMS are rather pleasant and cheaper than if I stayed in Switzerland Author's Bio Author's Blog Ken Bloom

  • Hunt For The God Particle

    Updated: 2010-04-07 01:54:02
    The universe – stars, planets, nebulae, the Milky Way, black holes – in its entirety and infinitenes

  • Demystifying the Origins of the Universe and the Dangers of Doing So

    Updated: 2010-04-04 22:02:44
    Understanding the origins of the universe has consumed philosophers, prophets, religious leaders, sc

  • Looking For Nothing?

    Updated: 2010-04-04 00:27:03
    I Don’t Know why we are so focussed. I do know, we can begin to see everything only when we lo

  • Why Particle Physics?

    Updated: 2010-04-03 15:04:24
    I have blogged less since Tuesday because I have been working with journalists at Northwestern to write articles and interviews on the start-up of the 7 TeV run of the LHC. This has been a very satisfying experience, since all three ladies and a young man are intelligent, attentive and enthusiastic about this momentous event and [...]

  • Conundrum Theoretical

    Updated: 2010-04-02 22:45:11
    Every theory, every idea, every bit of knowledge that is meant to progress society has already been

  • Space For Every Particle?

    Updated: 2010-04-02 06:25:25
    I Don’t Know why we ignore the space between particles. I do know, Space must exist for every

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