172 Result(s)
within
M Zanetti
Astronomy, Astrophysics and Cosmology
Elementary Particles, Quantum Field Theory
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Open AccessFirst measurement of the underlying event activity at the LHC with \(\sqrt{s} = 0.9\) TeV
A measurement of the underlying activity in scattering processes with p T scale in the GeV region is performed in proton–proton collisions at ...
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Open AccessCMS tracking performance results from early LHC operation
The first LHC pp collisions at centre-of-mass energies of 0.9 and 2.36 TeV were recorded by the CMS detector in December 2009. The trajectories of charged particles produced in the collisions were reconstructe...
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Open AccessPrompt and non-prompt J/ψ production in pp collisions at \(\sqrt{s} = 7\) TeV
The production of J/ψ mesons is studied in pp collisions at \(\sqrt{s} = 7\) TeV with the CMS experiment at the LHC. The measurem...
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Open AccessMeasurement of the \(\mathrm{{t\bar{t}}}\) production cross section in pp collisions at \(\sqrt{s}=7\) TeV using the kinematic properties of events with leptons and jets
A measurement of the \(\mathrm{t{\bar{t}}}\) production cross section in proton-proton collisions at a centre-of-mass energy of 7...
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Open AccessForward energy flow, central charged-particle multiplicities, and pseudorapidity gaps in W and Z boson events from pp collisions at \(\sqrt{s}= 7\) TeV
A study of forward energy flow and central charged-particle multiplicity in events with W and Z bosons decaying into leptons is presented. The analysis uses a sample of 7 TeV pp collisions, corresponding to an...
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Open AccessStudy of high-p T charged particle suppression in PbPb compared to pp collisions at \(\sqrt{s_{\mathrm{NN}}}=2.76~\mathrm{TeV}\)
The transverse momentum spectra of charged particles have been measured in pp and PbPb collisions at \(\sqrt{s_{NN}}=2.76~\mathrm{TeV}\) ...
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Open AccessCentrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at \(\sqrt{s_{NN}}= 2.76\ \mbox{TeV}\)
Measurements from the CMS experiment at the LHC of dihadron correlations for charged particles produced in PbPb collisions at a nucleon–nucleon centre-of-mass energy of 2.76 TeV are presented. The results are ...
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Open AccessMeasurement of the underlying event in the Drell–Yan process in proton–proton collisions at \(\sqrt{s} = 7~\mbox{TeV}\)
A measurement of the underlying event (UE) activity in proton–proton collisions at a center-of-mass energy of 7 TeV is performed using Drell–Yan events in a data sample corresponding to an integrated luminosit...
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Open AccessStudy of the inclusive production of charged pions, kaons, and protons in pp collisions at \(\sqrt{s} = 0.9, 2.76,\mbox{ and }7~\mbox{TeV}\)
Spectra of identified charged hadrons are measured in pp collisions at the LHC for \(\sqrt{s} = 0.9, 2.76,\mbox{ and } 7~\mbox{TeV}\) ...
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Measurement of the top-quark mass in \(\mathrm{t}\overline{\mathrm{t}}\) events with dilepton final states in pp collisions at \(\sqrt{s}=7\ \mbox{TeV}\)
The top-quark mass is measured in proton-proton collisions at \(\sqrt{s} = 7\ \mbox{TeV}\) using a data sample correspo...
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Open AccessA search for a doubly-charged Higgs boson in pp collisions at \(\sqrt{s} = 7 \ \mbox{TeV}\)
A search for a doubly-charged Higgs boson in pp collisions at \(\sqrt{s} = 7 \ \mbox{TeV}\) is presented. The data correspond to ...
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Open AccessRatios of dijet production cross sections as a function of the absolute difference in rapidity between jets in proton–proton collisions at \(\sqrt{s} = 7\ \mathrm{TeV}\)
A study of dijet production in proton–proton collisions was performed at \(\sqrt{s}=7\mbox{~TeV}\) for jets with p T>35 GeV and |
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Open AccessMeasurement of the relative prompt production rate of χ c2 and χ c1 in pp collisions at \(\sqrt{s} = 7\ \mathrm{TeV}\)
A measurement is presented of the relative prompt production rate of χ c2 and χ c1 with 4.6 fb−1 of data collected by the CMS experiment at the LHC in pp collisions at ...
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Open AccessMeasurement of the sum of WW and WZ production with W+dijet events in pp collisions at \(\sqrt{s} = 7\ \mbox{TeV}\)
A measurement of the inclusive WW+WZ diboson production cross section in proton–proton collisions is reported, based on events containing a leptonically decaying W boson and exactly two jets. The data sample, ...
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Open AccessMeasurement of differential top-quark-pair production cross sections in pp collisions at \(\sqrt{s} = 7\ \mathrm{TeV}\)
Normalised differential top-quark-pair production cross sections are measured in pp collisions at a centre-of-mass energy of 7 TeVat the LHC with the CMS detector using data recorded in 2011 corresponding to a...
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Open AccessMeasurement of the \(\mathrm{t}\bar{\mathrm{t}}\) production cross section in the τ+jets channel in pp collisions at \(\sqrt{s}=7\ \mbox{TeV}\)
The top-quark pair production cross section in 7 TeV center-of-mass energy proton–proton collisions is measured using data collected by the CMS detector at the LHC. The measurement uses events with one jet ide...
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Open AccessSearch for supersymmetry in pp collisions at \(\sqrt{s} =7\) TeV in events with a single lepton, jets, and missing transverse momentum
Results are reported from a search for new physics processes in events containing a single isolated high-transverse-momentum lepton (electron or muon), energetic jets, and large missing transverse momentum. Th...
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Open AccessSearch for a standard-model-like Higgs boson with a mass in the range 145 to 1000 GeV at the LHC
A search for a standard-model-like Higgs boson in the H→WW and H→ZZ decay channels is reported, for Higgs boson masses in the range 145<m H<1000 GeV. The search is based upon proton–proton collisi...
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Open AccessSearch for physics beyond the standard model in events with τ leptons, jets, and large transverse momentum imbalance in pp collisions at \(\sqrt{s}=7\ \mathrm{TeV}\)
A search for physics beyond the standard model is performed with events having one or more hadronically decaying τ leptons, highly energetic jets, and large transverse momentum imbalance. The data sample correspo...
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Open AccessMeasurement of masses in the \(\mathrm{t}\overline{\mathrm{t}}\) system by kinematic endpoints in pp collisions at \(\sqrt{s}=7\ \mathrm{TeV}\)
A simultaneous measurement of the top-quark, W-boson, and neutrino masses is reported for \(\mathrm{t}\overline{\mathrm{t}} \) ev...
