In a new exhibition at the American Center for Physics in College Park, Maryland, artist Julian Voss-Andreae shows a collection that explores the boundary of the classical and quantum worlds.
1TeV beam @ the LHC, officially the highest energy beam in the world. 1TeV beam @ LHC
: skip to main skip to sidebar The Science of Conundrums THE IMPACT OF MEGASCIENCE Saturday , November 28, 2009 Colliders Are Forever M's OFFICE LONDON What do you know about CIRC in Geneva , Commander Bond Not much sir . Centre International pour la Récherche Circulaire . About says it all . They've built the world's largest Dyson Ball Vac according to CIRC PR , but physicists are a canny bunch . Half the time they don't know what they're talking about . It might look like a giant Dyson Ball Vac but it might not work like . one Good . That confirms our intelligence . Might not be a Vac at all . Find out for us in case it's anti-British . This is the beast , a hundred meters underground . unrolling a giant schematic 27 km around . A great deal of . suction 10 Billion to date , . sir Not a total waste we're finding . Picking up dust as far as London . But where are they going to put it all eventually when they shut it down for cleaning Not our problem fortunately . Touch and go on other fronts . Accidents , some new theories on what might happen at the Doomsday Machine . But they say they've got more baffling concerns . Seems they've found a physicist in the blower , but he's not
Geneva, 20 November 2009. Particle beams are once again circulating in the worlds most powerful part
I got these two items about lists of 50 things within 8 hours of each other. They don’t seem connected, so I think it is a coincidence of some kind. Interesting…
(1) The e-Health news blog has published a list of 50 websites under the heading “Top 50 Free Open Courseware Classes for Aspiring Scientists”. It includes sites with open access course materials.
(2) The site Accredited Colleges Online (.org) has compiled a list they call “50 Best Physics Blogs”. Our* little effort, Asymptotia (which I think of as a blog that happens to be [...]
http://www.youtube.com/watch?v=yZco2rPz_qk These guys are always up to some crazy funky fresh skits.
A first public seminar at CERN – standing room only – was held today (Thanksgiving Day, 26-Nov-2009). The slides from the talks are available here: INDICO web page.
Steve Myers (CERN) kicked off the meeting with a pithy contrast of photos of a severely damaged set of magnets with a beautiful machine monitor trace showing [...]
When two protons bunches traveling in opposite directors at close to the speed of light first met on Nov. 23 within the Compact Muon Solenoid detector at the Large Hadron Collider at CERN, 100 million detection elements were ready to record. Before detection equipment could record any data from those first collisions, scientists actually had to turn the detector on. Read on to find out how hundreds of scientists and maintenance personnel power up the CMS detector.
The large collider is up and running and with it a further step towards understanding the building b
Inside CMS, people are busy learning what they can from the handful of collision events recorded yesterday. Our magnet was not on at the time because it would have interfered with the beams, at this early stage, so we cannot understand anything about charged track momenta. But those straight-line tracks still provide a [...]
Physicists from the Japanese-led multi-national T2K neutrino collaboration announced today that over the weekend they detected the first events generated by their newly built neutrino beam at the J-PARC accelerator laboratory in Tokai, Japan.
Well, a very gentle sort of wham. Yesterday the Large Hadron Collider at CERN had its first collisions of protons! It is a warm start, making sure everything is working before ramping up the energies to regimes where we hope to see new physics, but it is a very exciting milestone nonetheless*. Recall that a few days back they hit the landmark of getting the machine to circulate beams again for the first time. (If you've forgotten what all of this is for, please search the blog for "LHC" and/or look in the related posts list at the bottom of this one.) Above right is a visual reconstruction of some of the collision data seen at the ALICE detector, and you can see more of this sort of data at CERN's website (from where I got this graphic).
From the press release: [...]
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LARGE HADRON COLLIDER PRODUCES FIRST PROTON COLLISIONS IN BIG BANG MISSION I can’t explain why
CMS and the other LHC experiments have seen the first LHC collisions ever!
You can clearly see a slew of green tracks coming from the interaction point. They are all straight because the magnetic field is off today. (It will be turned on later – remember that the experimental solenoids affect the beam [...]
A picture is worth 1000 words
The first protons collided in the Large Hadron Collider today at CERN outside Geneva, Switzerland. The four largest detectors at the LHC all recorded collision events. Scientists at CERN, throughout the United States, and around the world celebrated the news.
http://cmsdoc.cern.ch/cms/performance/FirstBeam/cms-e-commentary09.htm
http://cmsdoc.cern.ch/cms/performance/FirstBeam/pictures221109/CollisionEvent.png
It looks like we recorded a very good collision candidate event!! Enjoy!!
Edgar Carrera (Boston University)
The reason for the abnormality in spelling of said collider, is that the largest thing built ever, t
If you want to turn on a light, or start your car, you rarely pause to think about possible damage that might result. But when beam is coursing through the CMS muon end caps, we think about it very carefully. In fact, we discuss in all seriousness when to turn on the [...]
Yesterday we enjoyed our second set of beam splash events, generated with beam one in contrast to earlier splash events generated with beam two.
Today we are thrilled to see beautiful beam halo events in CMS, like this one:
You can clearly see a trajectory (in red) extending across the CMS detector based on short track segments [...]
It looks like tonight CMS will be the chosen experiment to press the red button. The LHC operators have told us that after they perform several tests with the captured beam 1, they will try to run for 20 min with an untouched captured beam 1 (probably meaning they won’t perform any tests) and then [...]
(Boston.com) – The European Organization for Nuclear Research (CERN) says it expects to restar
Hooray! The Large Hadron Collider (LHC) in Europe has switched back on after being offline for a y
Excitement returns to CMS this month, as the LHC begins to circulate beam. There are many good sources of information, for example, the online commentary by Darin Acosta, among others.
My team from Northwestern University is busy providing prompt feedback on the response of the cathode strip chambers (CSCs) from the CMS experiment. On [...]
Beam 1 circulated for several minutes and before that we were able to take a a few splash events. Then after they managed to circulate Beam 2 and they are ready to capture it…
The BBC was here for most of the Beam 2 episode.
-Edgar Carrera (Boston University)
The tweets from CERN about the Large Hadron Colider on Twitter today have been so exciting. As the l
The first beam of 2009 has passed through ATLAS! Follow the events at http://twitter.com/cern.
Scientists at CERN are in the process of restarting the Large Hadron Collider at this very moment! Here's a handy guide for following their minute-by-minute progress over the Internet.
As you can see in the picture I took this morning, it is foggy here at CERN today as we await the first circulating beam of protons in the LHC since last year. When this will happen exactly is a little foggy as well. There will probably be protons put into the LHC sometime this [...]
After over a year of repairs the European Organization for Nuclear Research (CERN) has announced th
This week the failure of the scientific world has suffered another setback. No I’m not talking
The Baguette Incident (source: foxypar4/flickr, via PopSci) Pity the poor Large Hadron Collider, the
Whilst working on the Large Hadron Collider Doctor Sergio De Jesus was BLASTED with Higgs Bosons, re
The search for the elusive Higgs-boson is the driving force between the fierce, but allegedly friend: skip to main skip to sidebar The Science of Conundrums THE IMPACT OF MEGASCIENCE Monday , October 26, 2009 LHC Beams Back To Life After a major accident a year ago and 40 Million to fix it , CERN quietly announced today that the LHC has passed some preliminary tests on its way to a restart this November . Some low power proton beams generated by the pre-accelerators were injected into parts of the LHC 27 km magnetic ring , one travelling into the LHCb detector . Like turning on the tap to see if a mended pot will leak . So far so . good Good news for the army of some 10,000 engineers , technicians and physicists who have been sadly busy for a year fixing broken and damaged equipment and redesigning some of the safety systems that failed and some that were inadequate to signal an impending . failure In one of the 13,000 Amp power circuits last year a single poor busbar splice between two giant cylinder magnets melted without warning , among thousands of other such splices . That burned a hole in the cooling system and with the tremendous amount of pressure in the liquid superfluid helium , there was an explosive eruption of 4 tons of 1.9K ultracold coolant that the few safety