Search
Results
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Measurement of the Λ0b lifetime in pp collisions at s√=7 TeV
(2013)Journal of High Energy PhysicsA measurement of the Λ0b lifetime using the decay Λ0b→J/ψΛ in protonproton collisions at s√=7 TeV is presented. The data set, corresponding to an integrated luminosity of about 5 fb−1, was recorded with the CMS experiment at the Large Hadron Collider using triggers that selected dimuon events in the J/ψ mass region. The Λ0b lifetime is measured to be 1.503 ± 0.052 (stat.) ± 0.031 (syst.) ps.Journal Article -
Search for heavy resonances in the W/Z-tagged dijet mass spectrum in pp collisions at 7 TeV
(2013)Physics Letters BA search has been made for massive resonances decaying into a quark and a vector boson, qW or qZ, or a pair of vector bosons, WW, WZ, or ZZ, where each vector boson decays to hadronic final states. This search is based on a data sample corresponding to an integrated luminosity of 5.0 fb-1 of proton-proton collisions collected in the CMS experiment at the LHC in 2011 at a center-of-mass energy of 7 TeV. For sufficiently heavy resonances ...Journal Article -
Search for a standard-model-like Higgs boson with a mass in the range 145 to 1000 GeV at the LHC
(2013)The European Physical Journal CA 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 collision data samples corresponding to an integrated luminosity of up to 5.1 fb−1 at s√=7 TeV and up to 5.3 fb−1 at s√=8 TeV, recorded by the CMS experiment at the LHC. The combined upper limits at 95 % confidence level on products of the cross section ...Other Journal Item -
Search for narrow resonances using the dijet mass spectrum in pp collisions at √s=8 TeV
(2013)Physical Review DResults are presented of a search for the production of new particles decaying to pairs of partons (quarks, antiquarks, or gluons), in the dijet mass spectrum in proton-proton collisions at √s=8 TeV. The data sample corresponds to an integrated luminosity of 4.0 fb−1, collected with the CMS detector at the LHC in 2012. No significant evidence for narrow resonance production is observed. Upper limits are set at the 95% confidence level ...Journal Article -
Measurements of differential jet cross sections in proton-proton collisions at √s=7 TeV with the CMS detector
(2013)Physical Review DJournal Article -
Observation of a new boson with mass near 125 GeV in pp collisions at √s=7 and 8 TeV
(2013)Journal of High Energy PhysicsA detailed description is reported of the analysis used by the CMS Collaboration in the search for the standard model Higgs boson in pp collisions at the LHC, which led to the observation of a new boson. The data sample corresponds to integrated luminosities up to 5.1 fb−1 at s√=7 TeV, and up to 5.3 fb−1 at s√=8 TeV. The results for five Higgs boson decay modes γγ, ZZ, WW, ττ, and bb, which show a combined local significance of 5 standard ...Journal Article -
Event shapes and azimuthal correlations in Z plus jets events in pp collisions at root s=7 TeV
(2013)Physics Letters BMeasurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at root s = 7 TeV correspond to an integrated luminosity of 5.0 fb(-1). The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. ...Journal Article -
Search for anomalous production of highly boosted Z bosons decaying to mu(+)mu(-) in proton-proton collisions at s√=7 TeV
(2013)Physics Letters BResults are reported from a search for the anomalous production of highly boosted Z bosons with large transverse momentum and decaying to mu(+)mu(-). Such Z bosons may be produced in the decays of new heavy particles. The search uses pp collision data at root s = 7 TeV, corresponding to an integrated luminosity of 5.0 fb(-1) recorded with the CMS detector. The shape of the observed transverse momentum distribution of Z bosons is consistent ...Journal Article -
Measurement of the inelastic proton-proton cross section at root s=7 TeV
(2013)Physics Letters BA measurement is presented of the inelastic proton-proton cross section at a centre-of-mass energy of root s = 7 TeV. Using the CMS detector at the LHC, the inelastic cross section is measured through two independent methods based on information from (i) forward calorimetry (for pseudorapidity 3 <vertical bar eta vertical bar < 5) in collisions where at least one proton loses more than 5 x 10(-6) of its longitudinal momentum, and (ii) the ...Journal Article -
Search for long-lived particles in events with photons and missing energy in proton–proton collisions at √s=7 TeV
(2013)Physics Letters BResults are presented from a search for long-lived neutralinos decaying into a photon and an invisible particle, a signature associated with gauge-mediated supersymmetry breaking in supersymmetric models. The analysis is based on a 4.9fb−1 sample of proton-proton collisions at s=7TeV, collected with the CMS detector at the LHC. The missing transverse energy and the time of arrival of the photon at the electromagnetic calorimeter are used ...Journal Article