Search
Results
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Long-range two-particle correlations of strange hadrons with charged particles in pPb and PbPb collisions at LHC energies
(2015)Physics Letters BMeasurements of two-particle angular correlations between an identified strange hadron (KS 0 or Λ/Λ‾) and a charged particle, emitted in pPb collisions, are presented over a wide range in pseudorapidity and full azimuth. The data, corresponding to an integrated luminosity of approximately 35 nb−1, were collected at a nucleon–nucleon center-of-mass energy (sNN) of 5.02 TeV with the CMS detector at the LHC. The results are compared to ...Journal Article -
Searches for supersymmetry based on events with b jets and four W bosons in pp collisions at 8 TeV
(2015)Physics Letters BFive mutually exclusive searches for supersymmetry are presented based on events in which bjets and four W bosons are produced in proton–proton collisions at √s=8TeV. The data, corresponding to an integrated luminosity of 19.5fb-1, were collected with the CMS experiment at the CERN LHC in 2012. The five studies differ in the leptonic signature from the W boson decays, and correspond to all-hadronic, single-lepton, opposite-sign dilepton, ...Journal Article -
Study of vector boson scattering and search for new physics in events with two same-sign leptons and two jets
(2015)Physical Review LettersA study of vector boson scattering in pp collisions at a center-of-mass energy of 8 TeV is presented. The data sample corresponds to an integrated luminosity of 19.4 fb−1 collected with the CMS detector. Candidate events are selected with exactly two leptons of the same charge, two jets with large rapidity separation and high dijet mass, and moderate missing transverse energy. The signal region is expected to be dominated by electroweak ...Journal Article -
Study of W boson production in pPb collisions at √sNN = 5.02 TeV
(2015)Physics Letters BThe first study of W boson production in pPb collisions is presented, for bosons decaying to a muon or electron, and a neutrino. The measurements are based on a data sample corresponding to an integrated luminosity of 34.6 nb−1 at a nucleon–nucleon centre-of-mass energy of √sNN = 5.02 TeV , collected by the CMS experiment. The W boson differential cross sections, lepton charge asymmetry, and forward–backward asymmetries are measured for ...Journal Article -
Measurement of the differential cross section for top quark pair production in pp collisions at √s = 8 TeV
(2015)The European Physical Journal CThe normalized differential cross section for top quark pair (tt¯) production is measured in pp collisions at a centre-of-mass energy of 8TeV at the CERN LHC using the CMS detector in data corresponding to an integrated luminosity of 19.7fb−1. The measurements are performed in the lepton+jets (e/μ +jets) and in the dilepton (e+e−, μ+μ−, and e±μ∓) decay channels. The tt¯ cross section is measured as a function of the kinematic properties ...Journal Article -
Measurement of electroweak production of two jets in association with a Z boson in proton–proton collisions at √s=8TeV
(2015)The European Physical Journal CThe purely electroweak (EW) cross section for the production of two jets in association with a Z boson, in proton–proton collisions at s√=8TeV, is measured using data recorded by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 19.7fb-1. The electroweak cross section for the ℓℓjj final state (with ℓ=e or μ and j representing the quarks produced in the hard interaction) in the kinematic region defined by ...Journal Article -
Measurement of the inclusive 3-jet production differential cross section in proton–proton collisions at 7 TeV and determination of the strong coupling constant in the TeV range
(2015)The European Physical Journal CThis paper presents a measurement of the inclusive 3-jet production differential cross section at a proton–proton centre-of-mass energy of 7 TeV using data corresponding to an integrated luminosity of 5fb−1collected with the CMS detector. The analysis is based on the three jets with the highest transverse momenta. The cross section is measured as a function of the invariant mass of the three jets in a range of 445–3270 GeV and in two bins ...Journal Article -
Search for third-generation scalar leptoquarks in the tτ channel in proton-proton collisions at √s = 8 TeV
(2015)Journal of High Energy PhysicsA search for pair production of third-generation scalar leptoquarks decaying to top quark and τ lepton pairs is presented using proton-proton collision data at a center-of-mass energy of s√=8 TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 19.7 fb−1. The search is performed using events that contain an electron or a muon, a hadronically decaying τ lepton, and two or more jets. The observations ...Journal Article -
Search for disappearing tracks in proton-proton collisions at √s =8 TeV
(2015)Journal of High Energy PhysicsA search is presented for long-lived charged particles that decay within the CMS detector and produce the signature of a disappearing track. Disappearing tracks are identified as those with little or no associated calorimeter energy deposits and with missing hits in the outer layers of the tracker. The search uses proton-proton collision data recorded at s√=8 TeV that corresponds to an integrated luminosity of 19.5 fb−1. The results of ...Journal Article -
Search for vector-like T quarks decaying to top quarks and Higgs bosons in the all-hadronic channel using jet substructure
(2015)Journal of High Energy PhysicsA search is performed for a vector-like heavy T quark that is produced in pairs and that decays to a top quark and a Higgs boson. The data analysed correspond to an integrated luminosity of 19.7 fb−1 collected with the CMS detector in proton-proton collisions at s√=8 TeV. For T quarks with large mass values the top quarks and Higgs bosons can have significant Lorentz boosts, so that their individual decay products often overlap and merge. ...Journal Article