Browsing Natural and Mathematical Sciences by Title
Now showing items 1039-1058 of 1083
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Study of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairs
(American Physical Society, 2013)A study is presented of the mass and spin-parity of the new boson recently observed at the LHC at a mass near 125 GeV. An integrated luminosity of 17: 3 fb(-1), collected by the CMS experiment in proton-proton collisions ... -
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 ... -
Study of the underlying event at forward rapidity in pp collisions at root s=0.9, 2.76, and 7 TeV
(Springer Science+Business Media, 2013-04)The underlying event activity in proton-proton collisions at forward pseudorapidity (-6.6 < eta < -5.2) is studied with the CMS detector at the LHC, using a novel observable: the ratio of the forward energy density, ... -
Study of the underlying event in top quark pair production in pp collisions at 13 TeV
(Springer Nature, 2019-02-07)Measurements of normalized differential cross sections as functions of the multiplicity and kinematic variables of charged-particle tracks from the underlying event in top quark and antiquark pair production are presented. ... -
Study of vector boson scattering and search for new physics in events with two same-sign leptons and two jets
(American Physical Society, 2015-02-06)A study of vector boson scattering in pp collisions at a center-of-mass energy of 8 TeV is presented. The data sample corresponds to an integrated luminosity of 19.4 fb−1 collected with the CMS detector. Candidate events ... -
Study of W boson production in PbPb and pp collisions at root s(NN)=2.76 TeV
(Elsevier, 2012)A measurement is presented of W-boson production in PbPb collisions carried out at a nucleon-nucleon (NN) centre-of-mass energy root S-NN of 2.76 TeV at the LHC using the CMS detector. In data corresponding to an integrated ... -
Study of W boson production in pPb collisions at √sNN = 5.02 TeV
(Elsevier, 2015-11-12)The first study of W boson production in pPb collisions is presented, for bosons decaying to a muon or electron, and a neutrino. The measurements are based on a data sample corresponding to an integrated luminosity of 34.6 ... -
Study of Z boson plus jets events using variables sensitive to double-parton scattering in pp collisions at 13 TeV
(Springer, 2021-10-21)Double-parton scattering is investigated using events with a Z boson and jets. The Z boson is reconstructed using only the dimuon channel. The measurements are performed with proton-proton collision data recorded by the ... -
Study of Z boson production in pPb collisions at √sNN=5.02 TeV
(Elsevier, 2016-08-10)The production of Z bosons in pPb collisions at View the MathML source is studied by the CMS experiment via the electron and muon decay channels. The inclusive cross section is compared to pp collision predictions, and ... -
Study of Z production in PbPb and pp collisions at (Formula presented.) TeV in the dimuon and dielectron decay channels
(Springer International Publishing, 2015-03)The production of Z bosons is studied in the dimuon and dielectron decay channels in PbPb and pp collisions at sNN−−−−√=2.76sNN=2.76 TeV, using data collected by the CMS experiment at the LHC. The PbPb data sample ... -
Subdiffusivity of brownian motion among a poissonian field of moving traps
(Instituto Nacional de Matematica Pura e Aplicada, 2019)Our model consists of a Brownian particle X moving in N, where a Poissonian field of moving traps is present. Each trap is a ball with constant radius, centered at a trap point, and each trap point moves under a Brownian ... -
Suppression and azimuthal anisotropy of prompt and nonprompt J/psi production in PbPb collisions at root S-NN=2.76 TeV
(Springer International Publishing, 2017-04)The nuclear modification factor R-AA and the azimuthal anisotropy coefficient v(2) ofprompt and nonprompt (i.e. those from decays of b hadrons) J/psi mesons, measured from PbPb and pp collisions at root S-NN = 2.76 rfeV ... -
Suppression of excited Υ states relative to the ground state in Pb-Pb collisions at √sNN =5.02 TeV
(American Physical Society, 2018-04-02)The relative yields of gamma mesons produced in pp and Pb-Pb collisions at root s(NN) = 5.02 TeV and reconstructed via the dimuon decay channel are measured using data collected by the CMS experiment. Double ratios are ... -
Suppression of ϒ(1S), ϒ(2S), and ϒ(3S) quarkonium states in PbPb collisions at √sNN = 2.76 TeV
(Elsevier, 2017)The production yields of ϒ(1S), ϒ(2S), and ϒ(3S) quarkonium states are measured through their decays into muon pairs in the CMS detector, in PbPb and pp collisions at the centre-of-mass energy per nucleon pair of 2.76 ... -
Survival of branching Brownian motion in a uniform trap field
(Elsevier, 2016-03)We study a branching Brownian motion Z evolving in Rd, where a uniform field of Poissonian traps are present. We consider a general offspring distribution for Z and find the asymptotic decay rate of the annealed survival ... -
T-odd correlations from the top-quark chromoelectric dipole moment in lepton plus jets top-pair events
(American Physical Society, 2016-01-01)There exist several recent studies of the top-quark chromoelectric dipole moment (CEDM) in the context of searching for charge parity violating signals in top-quark pair production at the LHC. Most of these studies constrain ... -
Technical note: Application of an optical hydrophone to ionoacoustic range detection in a tissue-mimicking agar phantom
(Wiley, 2023-12)Background: Ionoacoustics is a promising approach to reduce the range uncertainty in proton therapy. A miniature-sized optical hydrophone (OH) was used as a measuring device to detect weak ionoacoustic signals with a high ... -
Testing cosmic censorship conjecture for extremal and near-extremal (2 + 1)-dimensional MTZ black holes
(IOP Publishing, 2020-09-03)We test the validity of the weak cosmic censorship conjecture for the (2 + 1)-dimensional charged anti-de Sitter black hole solution, which was derived by Martinezet al(MTZ). We first construct a thought experiment by ... -
Tests of CMS hadron forward calorimeter upgrade readout box prototype
(IOP Publishing, 2012-10)A readout box prototype for the CMS Hadron Forward calorimeter upgrade was built and tested in the CERN H2 beamline. The prototype was designed to enable simultaneous tests of different readout options for the four anode ... -
Theoretical determination of K(1)(1270,1400) mixing angle in QCD
(IOP Publishing, 2012)In quark model, the strange axial vector mesons K1(1270) and K1(1400) are defined as the mixtures of orbital angular momentum states K1A and K1B. In this work, by using the orthogonality of the mass eigenstates, we have ...
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