Browsing Natural and Mathematical Sciences by Issue Date
Now showing items 61-80 of 1083
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Search for a W ' boson decaying to a bottom quark and a top quark in pp collisions at root s=7 TeV
(Elsevier, 2013-01-29)Results are presented from a search for a W' boson using a dataset corresponding to 5.0 fb(-1) of integrated luminosity collected during 2011 by the CMS experiment at the LHC in pp collisions at root s=7 TeV. The W' boson ... -
Search for a narrow, spin-2 resonance decaying to a pair of Z bosons in the q(q)over-barl(+)l(-) final state
(Elsevier, 2013-01-29)Results are presented from a search for a narrow, spin-2 resonance decaying into a pair of Z bosons, with one Z-boson decaying into leptons (e(+)e(-) or mu(+)mu(-)) and the other into jets. An example of such a resonance ... -
Search for flavor changing neutral currents in top quark decays in pp collisions at 7 TeV
(Elsevier, 2013-01-29)The results of a search for flavor changing neutral currents in top quark decays t -> Zq in events with a topology compatible with the decay chain t (t) over bar -> Wb + Zq -> lvb + llq are presented. The search is performed ... -
Measurement of the sum of WW and WZ production with W plus dijet events in pp collisions at root s=7 TeV
(Springer Science+Business Media, 2013-02)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, collected at ... -
Search for exotic resonances decaying into WZ/ZZ in pp collisions at root s=7 TeV
(Springer Science+Business Media, 2013-02)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 overlapping jets and the Z decays into a pair of electrons, muons or neutrinos. The analysis ... -
Search in leptonic channels for heavy resonances decaying to long-lived neutral particles
(Springer Science+Business Media, 2013-02)A search is performed for heavy resonances decaying to two long-lived massive neutral particles, each decaying to leptons. The experimental signature is a distinctive topology consisting of a pair of oppositely charged ... -
Search for contact interactions in mu(+)mu(-) events in pp collisions at root s = 7 TeV
(American Physical Society, 2013-02-01)Results are reported from a search for the effects of contact interactions using events with a high-mass, oppositely charged muon pair. The events are collected in proton-proton collisions at root s = 7 TeV using the Compact ... -
Search for supersymmetry in events with photons and low missing transverse energy in pp collisions at root s=7 TeV
(Elsevier, 2013-02-12)Many models of new physics, including versions of supersymmetry (SUSY), predict production of events with low missing transverse energy, electroweak gauge bosons, and many energetic final-state particles. The stealth SUSY ... -
Vector and axial-vector couplings of D and D⁎ mesons in 2+1 flavor lattice QCD
(Elsevier, 2013-02-12)Using the axial-vector coupling and the electromagnetic form factors of the D and D⁎ mesons in 2+1 flavor lattice QCD, we compute the D⁎Dπ , DDρ and D⁎D⁎ρ coupling constants, which play an important role in describing ... -
Search for pair production of third-generation leptoquarks and top squarks in pp collisions at root s=7 TeV
(American Physical Society, 2013-02-22)Results are presented from a search for the pair production of third-generation scalar and vector leptoquarks, as well as for top squarks in R-parity-violating supersymmetric models. In either scenario, the new, heavy ... -
Measurement of the Υ(1S), Υ(2S), and Υ(3S) polarizations in pp collisions at root s 7 TeV
(American Physical Society, 2013-02-22)The polarizations of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) mesons are measured in proton-proton collisions at root s = 7 TeV, using a data sample of Upsilon(nS) -> mu(+)mu(-) decays collected by the CMS experiment, ... -
Search for new physics in events with photons, jets, and missing transverse energy in pp collisions at root s=7 TeV
(Springer Science+Business Media, 2013-03)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 integrated luminosity ... -
Search for new physics in events with same-sign dileptons and b jets in pp collisions at root s=8 TeV
(Springer Science+Business Media, 2013-03)A search for new physics is performed using events with isolated same-sign leptons and at least two bottom-quark jets in the final state. Results are based on a sample of proton-proton collisions collected at a center-of-mass ... -
Measurement of differential top-quark-pair production cross sections in pp collisions at root s=7 TeV
(Springer Science+Business Media, 2013-03)Normalised differential top-quark-pair production cross sections are measured in pp collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector using data recorded in 2011 corresponding to an integrated ... -
Search for contact interactions using the inclusive jet p(T) spectrum in pp collisions at root s=7 TeV
(American Physical Society, 2013-03-01)Results are reported of a search for a deviation in the jet production cross section from the prediction of perturbative quantum chromodynamics at next-to-leading order. The search is conducted using a 7 TeV proton-proton ... -
Search for supersymmetry in final states with a single lepton, b-quark jets, and missing transverse energy in proton-proton collisions at root s=7 TeV
(American Physical Society, 2013-03-05)A search motivated by supersymmetric models with light top squarks is presented using proton-proton collision data recorded with the CMS detector at a center-of-mass energy of root s = 7 TeV during 2011, corresponding to ... -
Measurement of the t(t)over-bar production cross section in pp collisions at root s=7 TeV with lepton plus jets final states
(Elsevier, 2013-03-13)A measurement of the a production cross section in pp collisions at root s = 7 TeV is presented. The results are based on data corresponding to an integrated luminosity of 2.3 fb(-1) collected by the CMS detector at the ... -
Search for heavy narrow dilepton resonances in pp collisions at root s=7 TeV and root s=8 TeV
(Elsevier, 2013-03-13)Results are presented of a search for compositeness in electrons and muons using a data sample of pp collisions at a center-of-mass energy root s = 7 TeV collected with the CMS detector at the LHC and corresponding to an ... -
Search for excited leptons in pp collisions at root s=7 TeV
(Elsevier, 2013-03-26)Results are presented of a search for compositeness in electrons and muons using a data sample of pp collisions at a center-of-mass energy root s = 7 TeV collected with the CMS detector at the LHC and corresponding to an ... -
Identification of b-quark jets with the CMS experiment
(IOP Publishing, 2013-04)At the Large Hadron Collider, the identification of jets originating from b quarks is important for searches for new physics and for measurements of standard model processes. A variety of algorithms has been developed by ...
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