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Message 21714 - Posted: 5 Dec 2009, 18:18:07 UTC
Last modified: 5 Dec 2009, 18:19:17 UTC

After 20 years in the making, the first physics results have come out of the European Organization for Nuclear Research's (CERN) Large Hadron Collider (LHC). Physicists from the University of Birmingham played a key role in analyzing these collisions and producing the first results from the 27 km circular atom smasher near Geneva.

"I'm immensely proud of the team who have worked so hard", said David Evans, United Kingdom spokesman for the Large Ion Collider Experiment (ALICE) collaboration. "They have been working around the clock at CERN in order to get these results out so quick."

"This is great news," said Keith Mason, from the Science and Technology Facilities Council (STFC) in the United Kingdom. "The LHC is now fully on track and gearing up to some unique and possibly world changing science. We're very proud of the huge contribution of our skilled scientists here in the UK."


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LHC: The Essential Guide Part 2
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Message 21738 - Posted: 9 Dec 2009, 19:02:58 UTC

From the New York Times...

Collider Meets Its Goal for Power



The Large Hadron Collider, the giant particle accelerator outside Geneva, took its first tentative steps into the promised land of physics late Tuesday evening, producing the most energetic particle collisions ever achieved in a laboratory.
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Message 21778 - Posted: 23 Dec 2009, 15:46:12 UTC - in response to Message 21738.  


A total of 284 collisions were recorded by the ALICE experiment and immediately reconstructed and analyzed. The researchers determined the average number of charged particles emitted perpendicular to the beam direction, known as ‘pseudorapidity density’. Their aim was to compare their results with previous measurements of proton-antiproton collisions at the same energy, and to establish a reference for comparison with future measurements at higher LHC energies.

The paper by the ALICE collaboration, which brings together authors from 113 research institutes, describes the experimental conditions in detail, as well as the main features of the ALICE detector systems used for the analysis.

Alice Collaboration (2009). First proton-proton collisions at the LHC as observed with the ALICE detector: measurement of the charged particle pseudorapidity density at Ös = 900 GeV. European Physical Journal C, DOI:10.1140/epjc/s10052-009-1227-4

A Large Ion Collider Experiment. For more information on the ALICE experiment, see: http://aliceinfo.cern.ch/Collaboration/index.html


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LHC: The Essential Guide Part 2
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Message 21789 - Posted: 11 Jan 2010, 17:19:03 UTC
Last modified: 11 Jan 2010, 17:20:42 UTC

Okay, the holidays were good and we all gained a few pounds, but isn't it time for some more "PARTICLE PUNISHMENT!!"?
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Message 21793 - Posted: 14 Jan 2010, 17:18:36 UTC

Is LHC ever going to have WUs to process?
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