Browsing Natural and Mathematical Sciences by Issue Date
Now showing items 161-180 of 1083
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Measurements of the t(t)Overbar charge asymmetry using the dilepton decay channel in pp collisions at root s=7 TeV
(Springer Science+Business Media, 2014-04)The t(t)Overbar charge asymmetry in proton-proton collisions root s = 7TeV is measured using the dilepton decay channel (ee, e mu, or mu mu). The data correspond to a total integrated luminosity of 5.0 fb(-1), collected ... -
Event activity dependence of (nS) production in=5.02 TeV pPb and=2.76 TeV pp collisions
(Springer Science+Business Media, 2014-04)The production of (1S), (2S), and (3S) is investigated in pPb and pp collisions at centre-of-mass energies per nucleon pair of 5.02 TeV and 2.76 TeV, respectively. The datasets correspond to integrated luminosities of about ... -
Measurement of the top-quark mass in all-jets t(t)over-bar events in pp collisions at root s=7 TeV
(Springer Nature, 2014-04)The mass of the top quark is measured using a sample of tt¯tt¯ candidate events with at least six jets in the final state. The sample is selected from data collected with the CMS detector in pp collisions at s√=7s=7 ... -
Search for baryon number violation in top-quark decays
(Elsevier, 2014-04-04)A search for baryon number violation (BNV) in top-quark decays is performed using pp collisions produced by the LHC at View the MathML source. The top-quark decay considered in this search results in one light lepton (muon ... -
Search for top squark and Higgsino production using diphoton Higgs boson decays
(American Physical Society, 2014-04-25)Results are presented of a search for a "natural" supersymmetry scenario with gauge mediated symmetry breaking. It is assumed that only the supersymmetric partners of the top quark (the top squark) and the Higgs boson ... -
Electromagnetic structure of charmed baryons in Lattice QCD
(Springer Science+Business Media, 2014-05)As a continuation of our recent work on the electromagnetic properties of the doubly charmed (sic)(cc) baryon, we compute the charge radii and the magnetic moments of the singly charmed Sigma(c), Omega(c) and the doubly ... -
Search for W ' -> tb decays in the lepton plus jets final state in pp collisions at root s=8 TeV
(Springer Science+Business Media, 2014-05)Results are presented from a search for the production of a heavy gauge boson W' decaying into a top and a bottom quark, using a data set collected by the CMS experiment at root s = 8 TeV and corresponding to an integrated ... -
Evidence for the 125 GeV Higgs boson decaying to a pair of tau leptons
(Springer Science+Business Media, 2014-05)A search for a standard model Higgs boson decaying into a pair of tau leptons is performed using events recorded by the CMS experiment at the LHC in 2011 and 2012. The dataset corresponds to an integrated luminosity of 4.9 ... -
Measurement of the W gamma and Z gamma inclusive cross sections in pp collisions at root s=7 TeV and limits on anomalous triple gauge boson couplings
(American Physical Society, 2014-05-01)Measurements of W gamma and Z gamma production in proton-proton collisions at root s = 7 TeV are used to extract limits on anomalous triple gauge couplings. The results are based on data recorded by the CMS experiment at ... -
Measurement of four-jet production in proton-proton collisions at root s=7 TeV
(American Physical Society, 2014-05-01)Measurements of the differential cross sections for the production of exactly four jets in proton-proton collisions are presented as a function of the transverse momentum p(T) and pseudorapidity eta, together with the ... -
Measurement of the properties of a Higgs boson in the four-lepton final state
(American Physical Society, 2014-05-01)The properties of a Higgs boson candidate are measured in the H -> ZZ -> 4l decay channel, with l = e, mu, using data from pp collisions corresponding to an integrated luminosity of 5.1 fb(-1) at the center-of-mass energy ... -
Search for top-quark partners with charge 5/3 in the same-sign dilepton final state
(American Physical Society, 2014-05-02)A search for the production of heavy partners of the top quark with charge 5/3 is performed in events with a pair of same-sign leptons. The data sample corresponds to an integrated luminosity of 19.5 fb(-1) and was collected ... -
Search for flavor-changing neutral currents in top-quark decays t -> Zq in pp collisions at root s=8 TeV
(American Physical Society, 2014-05-02)A search for flavor-changing neutral currents in top-quark decays t -> Zq is performed in events produced from the decay chain (tt) over bar -> Zq + Wb, where both vector bosons decay leptonically, producing a final state ... -
Measurements of t(t)over-bar spin correlations and top-quark polarization using dilepton final states in pp collisions at root s=7 TeV
(American Physical Society, 2014-05-09)Spin correlations and polarization in the top quark-antiquark system are measured using dilepton final states produced in pp collisions at the LHC at root s = 7 TeV. The data correspond to an integrated luminosity of 5.0 ... -
Top-quark forward-backward asymmetry from a color-octet t-channel resonance
(American Physical Society, 2014-05-09)We consider new physics contributions to the top-quark forward-backward asymmetry from a neutral V-8(0) or charged V-8(+) color-octet vector exchanged in the t channel. We study the phenomenological constraints on these ... -
Measurement of inclusive W and Z boson production cross sections in pp collisions at root s=8 TeV
(American Physical Society, 2014-05-16)A measurement of total and fiducial inclusive W and Z boson production cross sections in pp collisions at root s = 8 TeV is presented. Electron and muon final states are analyzed in a data sample collected with the CMS ... -
Search for pair production of excited top quarks in the lepton plus jets final state
(Springer Science+Business Media, 2014-06)A search is performed for pair-produced spin-3/2 excited top quarks , each decaying to a top quark and a gluon. The search uses data collected with the CMS detector from pp collisions at a center-of-mass energy of = 8 TeV, ... -
Measurement of the triple-differential cross section for photon plus jets production in proton-proton collisions at=7 TeV
(Springer Science+Business Media, 2014-06)A measurement of the triple-differential cross section, , in photon + jets final states using a data sample from proton-proton collisions at = 7 TeV is presented. This sample corresponds to an integrated luminosity of 2.14 ... -
Probing color coherence effects in pp collisions at root s=7 TeV
(Springer Science+Business Media, 2014-06)A study of color coherence effects in pp collisions at a center-of-mass energy of 7 is presented. The data used in the analysis were collected in 2010 with the CMS detector at the LHC and correspond to an integrated ... -
Study of the production of charged pions, kaons, and protons in pPb collisions at root SNN=5.02 TeV
(Springer Science+Business Media, 2014-06)Spectra of identified charged hadrons are measured in pPb collisions with the CMS detector at the LHC at . Charged pions, kaons, and protons in the transverse-momentum range -1.7 and laboratory rapidity are identified via ...
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