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.
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).
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.
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".
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.
CMS has presented a rich variety of results at the Electroweak Interactions and Unified Theories sessions of the Rencontres de Moriond conference in La Thuile, Italy.
At a CERN seminar today, CMS presented results for the search for new physics in the decay of Bs and B0 mesons to two muons, taking into account all of the 4.9 fb−1 of data collected in 2011.
Google+, the social network by Google, allows users to participate in Hangouts — multi-user video calls. These Hangouts can even be streamed live via a feature called Hangouts On Air.
Scientists at the Large Hadron Collider (LHC) will increase the energies of the bunches of subatomic particles called protons that it smashes together.
“If you remember, Mark Twain once said, ‘There are three kinds of lies: lies, damned lies, and statistics.’ If you use statistics in an improper way, you could get pretty much any result,” says Greg Landsberg, CMS’s new physics coordinator.
On 10th January, a delegation from Serbia, led by President Boris Tadic, arrived at CERN to sign the agreement that would grant Serbia associate membership to CERN, as a step towards full membership.
Rolf Heuer, the Director General of CERN, welcomed back CERN personnel and users after the holiday period, at the annual New Year’s presentation held on 11th January.
Serbian President Boris Tadic and Director General of the European Organization for Nuclear Research (CERN) Rolf Dieter Heuer signed on Tuesday in Geneva an agreement declaring Serbia a CERN Associate Member State.
Data are the currency of physics. As data accumulate, measurement uncertainty ranges narrow up to a certain point, increasing the potential for discoveries and making non-observations more stringent, with more far-reaching consequences.
The Collide@CERN Artist-in-Residence programme is currently seeking CERN scientists interested in engaging in thought-provoking and creative collaborations with visiting artists.
On 30th October, scientists at CERN switched off the proton beams for the Large Hadron Collider. The completed 2011 run outdid all expectations, especially for luminosity, and provided the collider's four experiments with an unprecedented amount of data.
