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Search for Narrow Resonances in Dijet Final States at √s=8 TeV with the Novel CMS Technique of Data Scouting
(2016)Physical Review LettersA search for narrow resonances decaying into dijet final states is performed on data from proton-proton collisions at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 18.8 fb−1. The data were collected with the CMS detector using a novel technique called data scouting, in which the information associated with these selected events is much reduced, permitting collection of larger data samples. This technique ...Journal Article -
Measurement of the differential cross section and charge asymmetry for inclusive pp→W±+X production at √s=8 TeV
(2016)The European Physical Journal CThe differential cross section and charge asymmetry for inclusive pp→W±+X→μ±ν+X production at √s=8TeV are measured as a function of muon pseudorapidity. The data sample corresponds to an integrated luminosity of 18.8fb−1 recorded with the CMS detector at the LHC. These results provide important constraints on the parton distribution functions of the proton in the range of the Bjorken scaling variable x from 10−3 to 10−1.Journal Article -
Measurement of the W+W- cross section in pp collisions at √s= 8 TeV and limits on anomalous gauge couplings
(2016)The European Physical Journal CA measurement of the W boson pair production cross section in proton-proton collisions at s√=8 TeV is presented. The data collected with the CMS detector at the LHC correspond to an integrated luminosity of 19.4fb-1. The W+W− candidates are selected from events with two charged leptons, electrons or muons, and large missing transverse energy. The measured W+W− cross section is 60.1±0.9(stat)±3.2(exp)±3.1(theo)±1.6(lumi)\,pb=60.1±4.8\,pb, ...Journal Article -
ϒ(nS) polarizations versus particle multiplicity in pp collisions at √s=7 TeV
(2016)Physics Letters BThe polarizations of the ϒ(1S), ϒ(2S), and ϒ(3S) mesons are measured as a function of the charged particle multiplicity in proton–proton collisions at s=7 TeV. The measurements are performed with a dimuon data sample collected in 2011 by the CMS experiment, corresponding to an integrated luminosity of 4.9 fb−1. The results are extracted from the dimuon decay angular distributions, in two ranges of ϒ(nS) transverse momentum (10–15 and 15–35 ...Journal Article -
Forward–backward asymmetry of Drell–Yan lepton pairs in pp collisions at √s = 8 TeV
(2016)The European Physical Journal CA measurement of the forward–backward asymmetry AFB of oppositely charged lepton pairs (μμ and ee) produced via Z / γ∗ boson exchange in pp collisions at √s = 8 TeV is presented. The data sample corresponds to an integrated luminosity of 19.7 fb-1 collected with the CMS detector at the LHC. The measurement of AFB is performed for dilepton masses between 40 GeV and 2TeV and for dilepton rapidity up to 5. The AFB measurements as a function ...Journal Article -
Transverse momentum spectra of inclusive b jets in pPb collisions at √sNN=5.02TeV
(2016)Physics Letters BWe present a measurement of b jet transverse momentum (pT) spectra in proton-lead (pPb) collisions using a dataset corresponding to about 35 nb−1 collected with the CMS detector at the LHC. Jets from b quark fragmentation are found by exploiting the long lifetime of hadrons containing a b quark through tagging methods using distributions of the secondary vertex mass and displacement. Extracted cross sections for b jets are scaled by the ...Journal Article -
Measurement of the ratio B(B0s→J/ψf0(980))/B(B0s→J/ψφ(1020)) in pp collisions at √s = 7 TeV
(2016)Physics Letters BA measurement of the ratio of the branching fractions of the Bs0 meson to J/ψf0(980) and to J/ψϕ(1020) is presented. The J/ψ, f0(980), and ϕ(1020) are observed through their decays to μ+μ−, π+π−, and K+K−, respectively. The f0 and the ϕ are identified by requiring |Mπ+π−−974 MeV|<50 MeV and |MK+K−−1020 MeV|<10 MeV. The analysis is based on a data sample of pp collisions at a centre-of-mass energy of 7 TeV, collected by the CMS experiment ...Journal Article -
Study of B Meson Production in p+Pb Collisions at √sNN = 5.02 TeV Using Exclusive Hadronic Decays
(2016)Physical Review LettersThe production cross sections of the B+, B0, and B0s mesons, and of their charge conjugates, are measured via exclusive hadronic decays in p+Pb collisions at the center-of-mass energy √sNN=5.02 TeV with the CMS detector at the CERN LHC. The data set used for this analysis corresponds to an integrated luminosity of 34.6 nb−1. The production cross sections are measured in the transverse momentum range between 10 and 60 GeV/c. No significant ...Journal Article -
A search for pair production of new light bosons decaying into muons
(2016)Physics Letters BA search for the pair production of new light bosons, each decaying into a pair of muons, is performed with the CMS experiment at the LHC, using a dataset corresponding to an integrated luminosity of 20.7 fb-1 collected in proton–proton collisions at center-of-mass energy of √s 0 8TeV. No excess is observed in the data relative to standard model background expectation and a model independent upper limit on the product of the cross section, ...Journal Article -
Measurement of differential cross sections for Higgs boson production in the diphoton decay channel in pp collisions at √s = 8 TeV
(2016)The European Physical Journal CA measurement is presented of differential cross sections for Higgs boson (H) production in pp collisions at s√=8 TeV. The analysis exploits the H→γγ decay in data corresponding to an integrated luminosity of 19.7fb-1 collected by the CMS experiment at the LHC. The cross section is measured as a function of the kinematic properties of the diphoton system and of the associated jets. Results corrected for detector effects are compared with ...Journal Article