Now showing items 1-10 of 120
Radiation testing of electronics for the CMS endcap muon system
The electronics used in the data readout and triggering system for the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) particle accelerator at CERN are exposed to high radiation levels. This ...
Search for new physics in events with opposite-sign leptons, jets, and missing transverse energy in pp collisions at √s=7 TeV
A search is presented for physics beyond the standard model (BSM) in final states with a pair of opposite-sign isolated leptons accompanied by jets and missing transverse energy. The search uses LHC data recorded at a ...
Search for a W′ boson decaying to a bottom quark and a top quark in pp collisions at √s=7 TeV
Results are presented from a search for a W′ boson using a dataset corresponding to 5.0 fb−1 of integrated luminosity collected during 2011 by the CMS experiment at the LHC in pp collisions at √s=7 TeV. The W′ boson is ...
Studies of jet quenching using isolated-photon + jet correlations in PbPb and pp collisions at √SNN=2.76 TeV
Results from the first study of isolated-photon + jet correlations in relativistic heavy ion collisions are reported. The analysis uses data from PbPb collisions at a centre-of-mass energy of 2.76 TeV per nucleon pair ...
Search for a narrow, spin-2 resonance decaying to a pair of Z bosons in the qq¯ℓ+ℓ− final state
Results are presented from a search for a narrow, spin-2 resonance decaying into a pair of Z bosons, with one Z-boson decaying into leptons (e+e− or μ+μ−) and the other into jets. An example of such a resonance is the ...
Forward–backward asymmetry of Drell–Yan lepton pairs in pp collisions at √s=7 TeV
A measurement of the forward–backward asymmetry (AFB) of Drell–Yan lepton pairs in pp collisions at √s=7 TeV is presented. The data sample, collected with the CMS detector, corresponds to an integrated luminosity of 5 fb−1. ...
Observation of long-range, near-side angular correlations in pPb collisions at the LHC
Results on two-particle angular correlations for charged particles emitted in pPb collisions at a nucleon–nucleon center-of-mass energy of 5.02 TeV are presented. The analysis uses two million collisions collected with the ...
Search for heavy narrow dilepton resonances in pp collisions at √s=7 TeV and √s=8 TeV
An updated search for heavy narrow resonances decaying to muon or electron pairs using the CMS detector is presented. Data samples from pp collisions at √s=7 TeV and 8 TeV at the LHC, with integrated luminosities of up to ...
New insights of multi-particle azimuthal correlations with symmetric cumulants in p-p, p-Pb, and Pb-Pb collisions
The first comparison of anisotropy harmonics (vn, n = 2–4) and event-by-event correlations of different orders between p–p (13 TeV), p–Pb (5.02 and 8.16 TeV) and Pb–Pb (5.02 TeV) as a function of multiplicity is presented. ...
Evidence for collective phenomena in pp collisions