Suche
Ergebnisse
-
Search for a low-mass pseudoscalar Higgs boson produced in association with a bb pair in pp collisions at √s=8 TeV
(2016)Physics Letters BA search is reported for a light pseudoscalar Higgs boson decaying to a pair of τ leptons, produced in association with a bb‾ pair, in the context of two-Higgs-doublet models. The results are based on pp collision data at a centre-of-mass energy of 8 TeV collected by the CMS experiment at the LHC and corresponding to an integrated luminosity of 19.7 fb−1. Pseudoscalar boson masses between 25 and 80 GeV are probed. No evidence for a ...Journal Article -
Measurement of dijet azimuthal decorrelation in pp collisions at √s =8TeV
(2016)The European Physical Journal CA measurement of the decorrelation of azimuthal angles between the two jets with the largest transverse momenta is presented for seven regions of leading jet transverse momentum up to 2.2TeV. The analysis is based on the proton-proton collision data collected with the CMS experiment at a centre-of-mass energy of 8TeV corresponding to an integrated luminosity of 19.7fb−1. The dijet azimuthal decorrelation is caused by the radiation of ...Journal Article -
Search for heavy resonances decaying to two Higgs bosons in final states containing four b quarks
(2016)The European Physical Journal CA search is presented for narrow heavy resonances X decaying into pairs of Higgs bosons (H) in proton-proton collisions collected by the CMS experiment at the LHC at s√=8TeV. The data correspond to an integrated luminosity of 19.7fb−1. The search considers HH resonances with masses between 1 and 3TeV, having final states of two b quark pairs. Each Higgs boson is produced with large momentum, and the hadronization products of the pair of ...Journal Article -
Measurement of the inelastic cross section in proton–lead collisions at √sNN= 5.02 TeV
(2016)Physics Letters BThe inelastic hadronic cross section in proton–lead collisions at a centre-of-mass energy per nucleon pair of 5.02 TeV is measured with the CMS detector at the LHC. The data sample, corresponding to an integrated luminosity of L=12.6±0.4 nb−1, has been collected with an unbiased trigger for inclusive particle production. The cross section is obtained from the measured number of proton–lead collisions with hadronic activity produced in the ...Journal Article -
Study of Z boson production in pPb collisions at √sNN = 5.02 TeV
(2016)Physics Letters BThe production of Z bosons in pPb collisions at sNN=5.02 TeV is studied by the CMS experiment via the electron and muon decay channels. The inclusive cross section is compared to pp collision predictions, and found to scale with the number of elementary nucleon-nucleon collisions. The differential cross sections as a function of the Z boson rapidity and transverse momentum are measured. Though they are found to be consistent within ...Journal Article -
Search for neutral MSSM Higgs bosons decaying to μ+μ− in pp collisions at √s = 7 and 8 TeV
(2016)Physics Letters BA search for neutral Higgs bosons predicted in the minimal supersymmetric standard model (MSSM) for μ+μ- decay channels is presented. The analysis uses data collected by the CMS experiment at the LHC in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 5.1 and 19.3 fb-1, respectively. The search is sensitive to Higgs bosons produced either through the gluon fusion process or ...Journal Article -
Measurement of inclusive jet production and nuclear modifications in pPb collisions at √sNN = 5.02 TeV
(2016)The European Physical Journal CInclusive jet production in pPb collisions at a nucleon–nucleon (NN) center-of-mass energy of sNN−−−√=5.02TeV is studied with the CMS detector at the LHC. A data sample corresponding to an integrated luminosity of 30.1 nb−1 is analyzed. The jet transverse momentum spectra are studied in seven pseudorapidity intervals covering the range −2.0<ηCM<1.5 in the NN center-of-mass frame. The jet production yields at forward and backward pseudorapidity ...Journal Article -
Search for W ' decaying to tau lepton and neutrino in proton-proton collisions at √s=8 TeV
(2016)Physics Letters BThe first search for a heavy charged vector boson in the final state with a tau lepton and a neutrino is reported, using 19.7 fb-1 of LHC data at s=8 TeV. A signal would appear as an excess of events with high transverse mass, where the standard model background is low. No excess is observed. Limits are set on a model in which the W' decays preferentially to fermions of the third generation. These results substantially extend previous ...Journal Article -
Search for new phenomena in monophoton final states in proton–proton collisions at √s=8TeV
(2016)Physics Letters BResults are presented from a search for new physics in final states containing a photon and missing transverse momentum. The data correspond to an integrated luminosity of 19.6 fb−1 collected in proton–proton collisions at s=8 TeV with the CMS experiment at the LHC. No deviation from the standard model predictions is observed for these final states. New, improved limits are set on dark matter production and on parameters of models with ...Journal Article -
Measurements of tt¯ spin correlations and top quark polarization using dilepton final states in pp collisions at √s=8 TeV
(2016)Physical Review DMeasurements of the top quark-antiquark (t¯t) spin correlations and the top quark polarization are presented for t¯t pairs produced in pp collisions at √s=8 TeV. The data correspond to an integrated luminosity of 19.5 fb−1 collected with the CMS detector at the LHC. The measurements are performed using events with two oppositely charged leptons (electrons or muons) and two or more jets, where at least one of the jets is identified as ...Journal Article