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Article
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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Article
Open AccessMeasurement of the \( \mathrm{t}\overline{\mathrm{t}} \) production cross section in the all-jet final state in pp collisions at \( \sqrt{s}=7 \) TeV
A measurement is presented of the \( \mathrm{t}\overline{\mathrm{t}} \) production cross section \( \left( {{\sigma_{{\mathrm{t}\overline{\mathrm{t}}}}}} \right) \) ...
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Article
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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Article
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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Article
Open AccessSearch for new physics in events with photons, jets, and missing transverse energy in pp collisions at \( \sqrt{s}=7 \) TeV
A search for physics beyond the standard model involving events with one or more photons, jets, and missing transverse energy has been performed by the CMS experiment. The data sample corresponds to an integra...
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Article
Open AccessSearch for exotic resonances decaying into WZ/ZZ in pp collisions at \( \sqrt{s}=7 \) TeV
A search for new exotic particles decaying to the VZ final state is performed, where V is either a W or a Z boson decaying into two overlap** jets and the Z decays into a pair of electrons, muons or neutrino...
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Article
Open AccessSearch for heavy quarks decaying into a top quark and a W or Z boson using lepton + jets events in pp collisions at \( \sqrt{s}=7 \) TeV
Results are presented from a search for the pair-production of heavy quarks, \( \mathrm{Q}\overline{\mathrm{Q}} \) , that decay exclusively into a top quark and a W or Z boson. The se...
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Article
Open AccessSearch for supersymmetry in final states with missing transverse energy and 0, 1, 2, or ≥3 b-quark jets in 7 TeV pp collisions using the variable α T
A search for supersymmetry in final states with jets and missing transverse energy is performed in pp collisions at a centre-of-mass energy of ...
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Article
Open AccessMeasurement of the top-quark mass in \( \mathrm{t}\overline{\mathrm{t}} \) events with lepton+jets final states in pp collisions at \( \sqrt{s}=7 \) TeV
The mass of the top quark is measured using a sample of \( \mathrm{t}\overline{\mathrm{t}} \) candidate events with one electron ...
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Article
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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Article
Open AccessSearch for resonant \( \mathrm{t}\overline{\mathrm{t}} \) production in lepton+jets events in pp collisions at \( \sqrt{s}=7 \) TeV
A model-independent search for the production of heavy resonances decaying into top-antitop quark pairs is presented. The search is based on events containing one lepton (muon or electron) and at least two jet...
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Article
Open AccessSearch for new physics with long-lived particles decaying to photons and missing energy in pp collisions at \( \sqrt{s}=7 \) TeV
A search is performed for long-lived neutral particles decaying into a photon and invisible particles. An example of such a signature is the decay of the lightest neutralino with nonzero lifetime into a gravit...
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Article
Open AccessSearch for electroweak production of charginos and neutralinos using leptonic final states in pp collisions at \( \sqrt{s}=7 \) TeV
The 2011 dataset of the CMS experiment, consisting of an integrated luminosity of 4.98 fb−1 of pp collisions at \( \sqrt{s}=7 \) ...
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Article
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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Article
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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Article
Open AccessSearch for dark matter and large extra dimensions in monojet events in pp collisions at \( \sqrt {s} = {7} \) TeV
A search has been made for events containing an energetic jet and an imbalance in transverse momentum using a data sample of pp collisions at a center-of-mass energy of 7 TeV. This signature is common to both ...
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Article
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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Article
Open AccessJet production rates in association with W and Z bosons in pp collisions at \( \sqrt {s} = 7 {\text{TeV}} \)
Measurements of jet production rates in association with W and Z bosons for jet transverse momenta above 30 GeV are reported, using a sample of proton-proton collision events recorded by CMS at
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Article
Open AccessMeasurement of the Drell-Yan cross section in pp collisions at \( \sqrt {s} = 7 \) TeV
The Drell-Yan differential cross section is measured in pp collisions at \( \sqrt {s} = 7 \) TeV, from a data sample collected wi...
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Article
Open AccessDependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at \( \sqrt {{{s_{\text{NN}}}}} = 2.76 \) TeV
A measurement is presented of the charged hadron multiplicity in hadronic PbPb collisions, as a function of pseudorapidity and centrality, at a collision energy of 2.76 TeV per nucleon pair. The data sample is...
