19 research outputs found

    Study of W boson production in pPb collisions at √sNN = 5.02 TeV

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    The 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 leptons of transverse momentum exceeding 25 GeV/c, and as a function of the lepton pseudorapidity in the |ηlab|<2.4 range. Deviations from the expectations based on currently available parton distribution functions are observed, showing the need for including W boson data in nuclear parton distribution global fits. © 2015 CERN for the benefit of the CMS Collaboration

    Search for neutral color-octet weak-triplet scalar particles in proton-proton collisions at √s= 8TeV

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    A search for pair production of neutral color-octet weak-triplet scalar particles (Θ0) is performed in processes where one Θ0 decays to a pair of b quark jets and the other to a Z boson plus a jet, with the Z boson decaying to a pair of electrons or muons. The search is performed with data collected by the CMS experiment at the CERN LHC corresponding to an integrated luminosity of 19.7 fb−1 of proton-proton collisions at √s = 8TeV. The number of observed events is found to be in agreement with the standard model predictions. The 95% confidence level upper limit on the product of the cross section and branching fraction is obtained as a function of the Θ0 mass. The 95% confidence level lower bounds on the Θ0 mass are found to be 623 and 426 GeV, for two different octo-triplet theoretical scenarios. These are the first direct experimental bounds on particles predicted by the octo-triplet model. © 2015, The Author(s)

    Search for W ' -> tb in proton-proton collisions at root s=8 TeV

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    Peer reviewe

    Search for a Higgs boson in the mass range from 145 to 1000 GeV decaying to a pair of W or Z bosons

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    Peer reviewe

    Comparison of the Z/γ ∗ + jets to γ + jets cross sections in pp collisions at (Formula presented.) TeV

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    A comparison of the differential cross sections for the processes Z/γ* + jets and photon (γ)+jets is presented. The measurements are based on data collected with the CMS detector at s=8(Formula presented.) TeV corresponding to an integrated luminosity of 19.7 fb−1. The differential cross sections and their ratios are presented as functions of pT. The measurements are also shown as functions of the jet multiplicity. Differential cross sections are obtained as functions of the ratio of the Z/γ*pT to the sum of all jet transverse momenta and of the ratio of the Z/γ*pT to the leading jet transverse momentum. The data are corrected for detector effects and are compared to simulations based on several QCD calculations.[Figure not available: see fulltext.] © 2015, The Author(s)

    Erratum to: Comparison of the Z/γ* + jets to γ + jets cross sections in pp collisions at √s = 8

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    Search for a massive resonance decaying into a Higgs boson and a W or Z boson in hadronic final states in proton-proton collisions at root s=8 TeV

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    Peer reviewe

    Search for W ' -> tb in proton-proton collisions at <tex>\sqrt{s}$</tex>=8 TeV

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    International Collaboration Boosting Open Science in Finland

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    The presentation of Kristiina Hormia-Poutanen in Fiesole Collection Development Retreat in Fiesole, Italy in April 4, 2019

    Search for third-generation scalar leptoquarks in the t <tex>\tau</tex>channelinprotonprotoncollisions<tex>s=</tex> channel in proton-proton collisions <tex>\sqrt{s}=</tex>8 TeV

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