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11 Apr 2012 | Achintya Rao | External news (e.g. BBC)
The Large Hadron Collider has woken from its winter slumber with a bang. Just after midnight local time on 5 April, the world's most powerful particle accelerator, based near Geneva, Switzerland, shattered its own world record by smashing protons...
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11 Apr 2012 | Achintya Rao | External news (e.g. BBC)
THE world's largest particle collider notched up a new record yesterday as it escalated its quest to explore the origins of the Universe.
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11 Apr 2012 | Achintya Rao | External news (e.g. BBC)
The Large Hadron Collider (LHC) is operating again after its winter break.
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11 Apr 2012 | Achintya Rao | Physics
A search is presented for a massive particle, generically referred to as a Z′, decaying into a t-tbar pair. The search focuses on Z′ resonances that are sufficiently massive to produce highly Lorentz-boosted top quarks, which yield collimated decay...
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08 Apr 2012 | Achintya Rao | Physics
The production of b jets in association with a Z/γ* boson is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV and recorded by the CMS detector. The inclusive production rates for Z/γ* + b-jet is...
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05 Apr 2012 | Maria Chamizo Llatas | Collaboration
CMS has just recorded the first collisions with stable beams at a world-record collision energy of 8 TeV[1]. CMS took good quality data with all sub-detectors working well. The LHC fill lasted for 1h34min and the "pile-up" at the beginning of the...
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05 Apr 2012 | Achintya Rao | Physics
Results are presented from a search for heavy bottom-like quarks, produced in pairs in pp collisions at √s = 7 TeV, undertaken with the CMS experiment at the LHC. The b′ quarks are assumed to decay exclusively to a top quark and a W boson (tW). The...
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03 Apr 2012 | Achintya Rao | Physics
A study of dijet production in proton-proton collisions was performed at √s = 7 TeV for jets with pT > 35 GeV and |y| < 4.7[1] using data collected with the CMS detector at the LHC in 2010. Events with at least one pair of jets are denoted as...
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03 Apr 2012 | Achintya Rao | Physics
Results are presented from a search for new physics in which the final state contains a photon (γ) and missing transverse energy (MET). The data correspond to an integrated luminosity of 5.0 fb−1 (inverse femtobarns) collected in pp collisions at √s...
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28 Mar 2012 | Achintya Rao | External news (e.g. BBC)
From the BBC: 'Jim [Al-Khalili] talks [to] CERN physicist, Tejinder Virdee about the search for the elusive Higgs boson, also known as the "God particle". Last December, scientists working at the Large Hadron Collider caught a tantalising glimpse...
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21 Mar 2012 | Achintya Rao | Physics
The LHC provides CMS with millions of collisions each second, and a wealth of physics data is obtained from the proton-proton interactions. In order to record all these data for analyses, all CMS sub-detectors have to be performing optimally. If you...
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19 Mar 2012 | Marzena Lapka | Collaboration
On Monday, 12th March 2012, 16 high-school students from Annecy, France awoke with excitement; they knew it was not going to be an ordinary day! Although they live only 40 km away from CERN, the students had never visited the laboratory, and on this...
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