Search
Now showing items 1-10 of 21
Search for pair production of excited top quarks in the lepton + jets final state
(2014-06-19)
A search is performed for pair-produced spin-3/2 excited top quarks (t∗t¯∗), each decaying to a top quark and a gluon. The search uses data collected with the CMS detector from pp collisions at a center-of-mass energy of ...
Event activity dependence of υ(nS) production in √SNN = 5.02 TeV pPb and √s = 2.76 TeV pp collisions
(2014-04-15)
The production of υ(1S), υ(2S), and υ(3S) is investigated in pPb and pp collisions at centre-of-mass energies per nucleon pair of 5.02 TeV and 2.76 TeV, respectively. The datasets correspond to integrated luminosities of ...
Measurement of the properties of a Higgs boson in the four-lepton final state
(2014-05-14)
The properties of a Higgs boson candidate are measured in the H→ZZ→4 decay channel, with =e, μ, using data from pp collisions corresponding to an integrated luminosity of 5.1fb-1 at the center-of-mass energy of s=7TeV and ...
Studies of azimuthal dihadron correlations in ultra-central PbPb collisions at √sNN = 2.76 TeV
(2014-02-20)
Azimuthal dihadron correlations of charged particles have been measured in PbPb collisions at √sNN = 2.76TeV by the CMS collaboration, using data from the 2011 LHC heavy-ion run. The data set includes a sample of ultra-central ...
Measurements of t t ̄ spin correlations and top-quark polarization using dilepton final states in pp collisions at s =7TeV
(2014-05-05)
Spin correlations and polarization in the top quark–antiquark system are measured using dilepton final states produced in pp collisions at the LHC at s√=7 TeV. The data correspond to an integrated luminosity of 5.0 fb−1 ...
Search for top-quark partners with charge 5/3 in the same-sign dilepton final state
(2014-04-30)
A search for the production of heavy partners of the top quark with charge 5/3 is performed in events with a pair of same-sign leptons. The data sample corresponds to an integrated luminosity of 19.5fb-1 and was collected ...
Search for the standard model Higgs boson produced in association with a W or a Z boson and decaying to bottom quarks
(2014-01-21)
A search for the standard model Higgs boson (H) decaying to bb¯ when produced in association with a weak vector boson (V) is reported for the following channels: W(μν)H, W(eν)H, W(τν)H, Z(μμ)H, Z(ee)H, and Z(νν)H. The ...
Measurement of the t-channel single-top-quark production cross section and of the |Vtb| CKM matrix element in pp collisions at √S = 8
(2014-06-16)
Measurements are presented of the t-channel single-top-quark production cross section in proton-proton collisions at s√ = 8 TeV. The results are based on a data sample corresponding to an integrated luminosity of 19.7 fb−1 ...
Measurements of the tt̄ charge asymmetry using the dilepton decay channel in pp collisions at s = 7 TeV
(2014-04-30)
The tt¯ charge asymmetry in proton-proton collisions at s√ = 7 TeV is measured using the dilepton decay channel (ee, eμ, or μμ). The data correspond to a total integrated luminosity of 5.0 fb−1, collected by the CMS ...
Measurement of four-jet production in proton-proton collisions at s =7TeV
(2014-05-28)
Measurements of the differential cross sections for the production of exactly four jets in proton-proton collisions are presented as a function of the transverse momentum pT and pseudorapidity η, together with the correlations ...