Now showing items 21-40 of 164

    • Measurement of differential cross sections in the kinematic angular variable ϕ * for inclusive Z boson production in pp collisions at √s=8 TeV 

      Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Baarmand, Marc M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Hohlmann, Marcus; Noonan, Daniel; Roy, Tuhin S.; Yumiceva, F. (2018-03-01)
      Measurements of differential cross sections dσ/dϕ* and double-differential cross sections d2σ/dϕ*d|y| for inclusive Z boson production are presented using the dielectron and dimuon final states. The kinematic observable ...
    • Measurement of four-jet production in proton-proton collisions at s =7TeV 

      Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; Chatrchyan, S. A.; Khachatryan, Vladimir A.; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang (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 ...
    • Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states 

      Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; Chatrchyan, S. A.; Khachatryan, Vladimir A.; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang (2014-01-17)
      A search for the standard model Higgs boson decaying to a W-boson pair at the LHC is reported. The event sample corresponds to an integrated luminosity of 4.9 fb-1 and 19.4 fb-1 collected with the CMS detector in pp ...
    • Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at s NN =2.76 TeV 

      Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; Chatrchyan, S. A.; Khachatryan, Vladimir A.; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang (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 ...
    • Measurement of inclusive W and Z boson production cross sections in pp collisions at s =8TeV 

      Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; Chatrchyan, S. A.; Khachatryan, Vladimir A.; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang (2014-05-14)
      A measurement of total and fiducial inclusive W and Z boson production cross sections in pp collisions at s=8TeV is presented. Electron and muon final states are analyzed in a data sample collected with the CMS detector ...
    • Measurement of jet fragmentation in PbPb and pp collisions at s NN =2.76 TeV 

      Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; Chatrchyan, S. A.; Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang (2014-08-18)
      The jet fragmentation function of inclusive jets with transverse momentum pT above 100GeV/c in PbPb collisions has been measured using reconstructed charged particles with pT above 1GeV/c in a cone of radius 0.3 around the ...
    • Measurement of normalized differential tt¯ cross sections in the dilepton channel from pp collisions at s√=13 TeV 

      Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Baarmand, Marc M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Hohlmann, Marcus; Noonan, Daniel; Roy, Tuhin S.; Yumiceva, Francisco (2018-04-11)
      Normalized differential cross sections for top quark pair production are measured in the dilepton (e⁺e⁻, μ⁺μ⁻, and μ∓e±) decay channels in proton-proton collisions at a center-of-mass energy of 13 TeV. The measurements are ...
    • Measurement of prompt and nonprompt charmonium suppression in PbPb collisions at 5.02 TeV 

      Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Baarmand, Marc M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Hohlmann, Marcus; Noonan, Daniel; Roy, Tuhin S.; Yumiceva, Francisco (2018-06-01)
      The nuclear modification factors of J / ψ and ψ(2S) mesons are measured in PbPb collisions at a centre-of-mass energy per nucleon pair of sNN=5.02TeV. The analysis is based on PbPb and p p data samples collected by CMS at ...
    • Measurement of Prompt D0 Meson Azimuthal Anisotropy in Pb-Pb Collisions at sNN =5.02 TeV 

      Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Baarmand, Marc M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Hohlmann, Marcus; Noonan, Daniel; Roy, Tuhin S.; Yumiceva, Francisco (2018-05-16)
      The prompt D0 meson azimuthal anisotropy coefficients, v2 and v3, are measured at midrapidity (|y|<1.0) in Pb-Pb collisions at a center-of-mass energy sNN=5.02 TeV per nucleon pair with data collected by the CMS experiment. ...
    • Measurement of prompt J/ψ pair production in pp collisions at√s = 7 Tev 

      Baarmand, Marc M.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; The CMS Collaboration; Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Bergauer, Thomas (2014-09)
      Production of prompt J/ψ meson pairs in proton-proton collisions at s√ = 7 TeV is measured with the CMS experiment at the LHC in a data sample corresponding to an integrated luminosity of about 4.7 fb−1. The two J/ψ mesons ...
    • Measurement of prompt ψ (2S) to J /ψ yield ratios in Pb-Pb and p - p collisions at sNN =2.76 TeV 

      Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Wolfgang, Adam; Bergauer, Thomas; Dragicevic, Marko; Baarmand, Marc M.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X. (2014-12-31)
      The ratio between the prompt ψð2SÞ and J=ψ yields, reconstructed via their decays into μþμ−, is measured in Pb-Pb and p-p collisions at ffiffiffiffiffiffiffiffi sNN p ¼ 2.76 TeV. The analysis is based on Pb-Pb and p-p ...
    • Measurement of quarkonium production cross sections in pp collisions at s=13TeV 

      Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Baarmand, Marc M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Hohlmann, Marcus; Noonan, Daniel; Roy, Tuhin S.; Yumiceva, F. (2018-05-10)
      Differential production cross sections of prompt J/ψ and ψ(2S) charmonium and ϒ(nS) (n=1,2,3) bottomonium states are measured in proton–proton collisions at s=13TeV, with data collected by the CMS detector at the LHC, ...
    • Measurement of the B± Meson Nuclear Modification Factor in Pb-Pb Collisions at sNN =5.02 TeV 

      Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Baarmand, Marc M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Hohlmann, Marcus; Noonan, Daniel; Roy, Tuhin S.; Yumiceva, Francisco X. (2017-10-13)
      The differential production cross sections of B± mesons are measured via the exclusive decay channels B±→J/ψK±→μ+μ-K± as a function of transverse momentum in pp and Pb-Pb collisions at a center-of-mass energy sNN=5.02 TeV ...
    • Measurement of the charge ratio of atmospheric muons with the CMS detector 

      Baarmand, Marc M.; Guragain, Samir; Hohlmann, Marcus; Kalakhety, H.; Mermerkaya, H.; Ralich, Robert M.; Vodopiyanov, Igor; Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R. (2010-08)
      We present a measurement of the ratio of positive to negative muon fluxes from cosmic ray interactions in the atmosphere, using data collected by the CMS detector both at ground level and in the underground experimental ...
    • Measurement of the differential cross section for isolated prompt photon production in pp collisions at 7 TeV 

      Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, Himali; Vodopiyanov, Igor; Chatrchyan, S. A.; Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang (2011-09-29)
      A measurement of the differential cross section for the inclusive production of isolated prompt photons in proton-proton collisions at a center-of-mass energy of 7 TeV is presented. The data sample corresponds to an ...
    • Measurement of the differential cross sections for the associated production of a W boson and jets in proton-proton collisions at s =13 TeV 

      Sirunyan, A. M; Tumasyan, A. R.; Adam, Wolfgang; Baarmand, Marc M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Hohlmann, Marcus; Noonan, Daniel; Roy, Tuhin S.; Yumiceva, F. (2017-10-27)
      A measurement of the differential cross sections for a W boson produced in association with jets in the muon decay channel is presented. The measurement is based on 13 TeV proton-proton collision data corresponding to an ...
    • Measurement of the differential cross sections for the associated production of a W boson and jets in proton-proton collisions at s =13 TeV 

      Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang; Baarmand, Marc M.; Bhopatkar, Vallary; Colafranceschi, Stefano; Hohlmann, Marcus; Noonan, Daniel; Roy, Tuhin S.; Yumiceva, F. (2017-10-27)
      A measurement of the differential cross sections for a W boson produced in association with jets in the muon decay channel is presented. The measurement is based on 13 TeV proton-proton collision data corresponding to an ...
    • Measurement of the differential inclusive B+ hadron cross sections in pp collisions at s=13 TeV 

      Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Baarmand, Marc M.; Bhopatkar, Vallary; Colafranceschi, S.; Hohlmann, Marcus; Noonan, Daniel; Roy, Tuhin S; Yumiceva, F. (2017-08-10)
      The differential cross sections for inclusive production of B+ hadrons are measured as a function of the B+ transverse momentum pT B and rapidity yB in pp collisions at a centre-of-mass energy of 13 TeV, using data collected ...
    • Measurement of the electron charge asymmetry in inclusive W production in pp collisions at √s=7TeV 

      Chatrchyan, S. A.; Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Wolfgang, Adam; Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, H.; Vodopiyanov, Igor B. (2012-09-11)
      A measurement of the electron charge asymmetry in inclusive pp ! W þ X ! e þ X production at ffiffi s p ¼ 7 TeV is presented based on data recorded by the CMS detector at the LHC and corresponding to an integrated ...
    • Measurement of the muon charge asymmetry in inclusive pp →w+X production at s =7TeV and an improved determination of light parton distribution functions 

      Baarmand, Marc M.; Dorney, B.; Hohlmann, Marcus; Kalakhety, H.; Yumiceva, Francisco X.; Chatrchyan, S. A.; Khachatryan, Vardan; Sirunyan, A. M.; Tumasyan, A. R.; Adam, Wolfgang (2014-08-13)
      Measurements of the muon charge asymmetry in inclusive pp→W+X production at s=7TeV are presented. The data sample corresponds to an integrated luminosity of 4.7fb-1 recorded with the CMS detector at the LHC. With a sample ...