Browsing Natural and Mathematical Sciences by Issue Date
Now showing items 481-500 of 1083
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Mechanical stability of the CMS strip tracker measured with a laser alignment system
(IOP Publishing, 2017-04-21)The CMS tracker consists of 206 m2 of silicon strip sensors assembled on carbon fibre composite structures and is designed for operation in the temperature range from −25 to +25°C. The mechanical stability of tracker ... -
Search for single production of vector-like quarks decaying to a Z boson and a top or a bottom quark in proton-proton collisions at √s = 13 TeV
(Springer International Publishing, 2017-05-05)A search for single production of vector-like quarks, T and B, decaying into a Z boson and a top or a bottom quark, respectively, is presented. The search is performed using data collected by the CMS experiment at the LHC ... -
Multiplicity and rapidity dependence of strange hadron production in pp, pPb, and PbPb collisions at the LHC
(Elsevier, 2017-05-10)Measurements of strange hadron (K-S(0), Lambda +(Lambda) over bar, and Xi(-)+(Xi) over bar (+)) transverse momentum spectra in pp, pPb, and PbPb collisions are presented over a wide range of rapidity and event charged-particle ... -
ΛcΣcπ coupling and Σc → Λcπ decay in lattice QCD
(Elsevier, 2017-05-10)We evaluate the Lambda(c)Sigma(c)pi coupling constant (G(Lambda c)Sigma(c)pi) and the width of the strong decay Sigma(c) -> Lambda(c)pi in 2 + 1flavor lattice QCD on four different ensembles with pion masses ranging from ... -
Search for narrow resonances in dilepton mass spectra in proton-proton collisions at root s=13 TeV and combination with 8 TeV data
(Elsevier, 2017-05-10)A search for narrow resonances in dielectron and dimuon invariant mass spectra has been performed using data obtained from proton–proton collisions at View the MathML source collected with the CMS detector. The integrated ... -
Search for supersymmetry in events with photons and missing transverse energy in pp collisions at 13 TeV
(Elsevier, 2017-06-10)The results of a search for new physics in final states with photons and missing transverse energy are reported. The study is based on a sample of proton–proton collisions collected at a center-of-mass energy of 13 TeV ... -
Search for dijet resonances in proton–proton collisions at √s=13 TeV and constraints on dark matter and other models
(Elsevier, 2017-06-10)A search is presented for narrow resonances decaying to dijet final states in proton–proton collisions at √s = 13 TeV using data corresponding to an integrated luminosity of 12.9 fb−1. The dijet mass spectrum is well ... -
Measurement of electroweak-induced production of Wγ with two jets in pp collisions at √s = 8 TeV and constraints on anomalous quartic gauge couplings
(Springer International Publishing, 2017-06-20)A measurement of electroweak-induced production of Wγ and two jets is performed, where the W boson decays leptonically. The data used in the analysis correspond to an integrated luminosity of 19.7 fb−1 collected by the CMS ... -
Search for associated production of a Z boson with a single top quark and for tZ flavour-changing interactions in pp collisions at s√=8 TeV
(Springer International Publishing, 2017-07-03)A search for the production of a single top quark in association with a Z boson is presented, both to identify the expected standard model process and to search for flavour-changing neutral current interactions. The data ... -
Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at √s = 13 TeV
(Springer International Publishing, 2017-07-05)A search for dark matter particles is performed using events with large missing transverse momentum, at least one energetic jet, and no leptons, in proton-proton collisions at s√=13s=13 TeV collected with the CMS detector ... -
Measurement of the mass difference between top quark and antiquark in pp collisions at s=8 TeV
(Elsevier, 2017-07-10)The invariance of the standard model (SM) under the CPT transformation predicts equality of particle and antiparticle masses. This prediction is tested by measuring the mass difference between the top quark and antiquark ... -
Measurement of inclusive jet cross sections in pp and PbPb collisions at √sNN = 2.76 TeV
(American Physical Society, 2017-07-17)Inclusive jet spectra from pp and PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76TeV, collected with the CMS detector at the CERN Large Hadron Collider, are presented. Jets are reconstructed with three ... -
Search for supersymmetry in the all-hadronic final state using top quark tagging in pp collisions at √s = 13 TeV
(American Physical Society, 2017-07-25)A search is presented for supersymmetry in all-hadronic events with missing transverse momentum and tagged top quarks. The data sample was collected with the CMS detector at the LHC and corresponds to an integrated luminosity ... -
Search for third-generation scalar leptoquarks and heavy right-handed neutrinos in final states with two tau leptons and two jets in proton-proton collisions at √ s = 13 TeV
(Springer International Publishing, 2017-07-26)A search is performed for third-generation scalar leptoquarks and heavy right-handed neutrinos in events containing one electron or muon, one hadronically decaying τ lepton, and at least two jets, using a s√=13s=13 TeV ... -
Pseudorapidity dependence of long-range two-particle correlations in pPb collisions at √sNN = 5.02 TeV
(American Physical Society, 2017-07-31)Two-particle correlations in pPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV are studied as a function of the pseudorapidity separation (Delta eta) of the particle pair at small relative azimuthal ... -
Erratum to: search for dark matter in proton-proton collisions at 8 TeV with missing transverse momentum and vector boson tagged jets
(Springer International Publishing, 2017-08-09)In the published version, the limits shown in the bottom-right panel of figure 11 were produced using an incorrect formula to translate the mMED − mDM limits into the plane of DM pair annihilation cross section versus mDM. -
LHC constraints on color octet scalars
(American Physical Society, 2017-08-09)We extract constraints on the parameter space of the Manohar and Wise model by comparing the cross sections for dijet, top-pair, dijet-pair,t (t) over bart (t) over bar and b (b) over barb (b) over bar productions at the ... -
Search for single production of a heavy vector-like T quark decaying to a Higgs boson and a top quark with a lepton and jets in the final state
(Elsevier, 2017-08-10)A search for single production of vector-like top quark partners (T) decaying into a Higgs boson and a top quark is performed using data from pp collisions at a centre-of-mass energy of 13 TeV collected by the CMS experiment ... -
Measurement of the differential inclusive B+ hadron cross sections in pp collisions at √s = 13 TeV
(Elsevier, 2017-08-10)The differential cross sections for inclusive production of B+ hadrons are measured as a function of the B+ transverse momentum pTB and rapidity yB in pp collisions at a centre-of-mass energy of 13 TeV, using data collected ... -
Measurement of the inclusive energy spectrum in the very forward direction in proton-proton collisions at √s = 13 TeV
(Springer International Publishing, 2017-08-11)The differential cross section for inclusive particle production as a function of energy in proton-proton collisions at a center-of-mass energy of 13 TeV is measured in the very forward region of the CMS detector. The ...
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