Search
Now showing items 51-60 of 62
Observation of a new Ξ <inf>b</inf> baryon
(2012-06-21)
The observation of a new b baryon via its strong decay into
b þ (plus charge conjugates) is reported.
The measurement uses a data sample of pp collisions at ffiffi
s p ¼ 7 TeV collected by the CMS experiment at
the ...
Search for new physics in events with same-sign dileptons and jets in pp collisions at √s = 8 TeV
(2014-01-29)
A search for new physics is performed based on events with jets and a pair of isolated, same-sign leptons. The results are obtained using a sample of proton-proton collision data collected by the CMS experiment at a ...
Search for flavor-changing neutral currents in top-quark decays t →zq in pp collisions at s =8TeV
(2014-05-02)
A search for flavor-changing neutral currents in top-quark decays t→Zq is performed in events produced from the decay chain tt̄→Zq+Wb, where both vector bosons decay leptonically, producing a final state with three leptons ...
Study of double parton scattering using W + 2-jet events in proton-proton collisions at √s = 7 TeV
(2014-03-05)
Double parton scattering is investigated in proton-proton collisions at s√ = 7 TeV where the final state includes a W boson, which decays into a muon and a neutrino, and two jets. The data sample corresponds to an integrated ...
Search for the standard model Higgs boson in the decay channel H→ZZ→4l in pp collisions at √s=7TeV
(2012-03-13)
A search for a Higgs boson in the four-lepton decay channel H ! ZZ, with each Z boson decaying to
an electron or muon pair, is reported. The search covers Higgs boson mass hypotheses in the range of
110 < mH < 600 GeV. ...
Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at √s = 7 TeV
(2014-06-12)
The production of a Z boson, decaying into two leptons and produced in association with one or more b jets, is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV. The data were ...
Observation of the associated production of a single top quark -and a W boson in pp collisions at s =8TeV
(2014-06-09)
The first observation of the associated production of a single top quark and a W boson is presented. The analysis is based on a data set corresponding to an integrated luminosity of 12.2fb-1 of proton-proton collisions at ...
Measurement of the pseudorapidity and centrality dependence of the transverse energy density in pb-pb collisions at √s <inf>NN</inf>=2.76TeV
(2012-10-08)
The transverse energy (ET) in Pb-Pb collisions at 2.76 TeV nucleon-nucleon center-of-mass energy
( ffiffiffiffiffiffiffiffi
sNN p ) has been measured over a broad range of pseudorapidity ( ) and collision centrality by ...
Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at s NN =2.76 TeV
(2014-04-11)
Measurements are presented by the CMS Collaboration at the Large Hadron Collider (LHC) of the higher-order harmonic coefficients that describe the azimuthal anisotropy of charged particles emitted in sNN=2.76 TeV PbPb ...
Search for new physics in the multijet and missing transverse momentum final state in proton-proton collisions at √s = 8 TeV
(2014-06-10)
A search for new physics is performed in multijet events with large missing transverse momentum produced in proton-proton collisions at √s = 8 TeV using a data sample corresponding to an integrated luminosity of 19.5 fb ...