Browsing by Author "Khachatryan, V."
Now showing items 81-100 of 233
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Measurement of the Z gamma -> nu(nu)over-bar gamma production cross section in pp collisions at root s=8 TeV and limits on anomalous ZZ gamma and Z gamma gamma trilinear gauge boson couplings
Khachatryan, V.; Işıldak, Bora (Elsevier, 2016-09-10)An inclusive measurement of the View the MathML source production cross section in pp collisions at View the MathML source is presented, using data corresponding to an integrated luminosity of 19.6 fb−1 collected with the ... -
Measurement of the ZZ production cross section and Z -> l(+)l(-)l '(+)l '(-) branching fraction in pp collisions at root s=13TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2016)Four-lepton production in proton-proton collisions, pp -> (Z/gamma*)(Z/gamma*)-> l(+)l(-)l '(+)l '(-), where l,l '(-) = e or mu, is studied at a center-of-mass energy of 13 TeV with the CMS detector at the LHC. The data ... -
Measurement of the Zγ production cross section in pp collisions at 8 TeV and search for anomalous triple gauge boson couplings
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2015-04)The cross section for the production of Zγ in proton-proton collisions at 8 TeV is measured based on data collected by the CMS experiment at the LHC corresponding to an integrated luminosity of 19.5 fb−1. Events with an ... -
Measurement of top quark polarisation in t-channel single top quark production
Khachatryan, V.; Işıldak, Bora (2016-04)A first measurement of the top quark spin asymmetry, sensitive to the top quark polarisation, in t-channel single top quark production is presented. It is based on a sample of pp collisions at a centre-of-mass energy of 8 ... -
Measurement of top quark-antiquark pair production in association with a W or Z boson in pp collisions at root s=8 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2014)A measurement of the cross section for the production of top quark-antiquark pairs (t (t) over bar) in association with a vector boson V (W or Z) in proton-proton collisions at root s = 8 TeV is presented. The results are ... -
Measurement of transverse momentum relative to dijet systems in PbPb and pp collisions at 2.76 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2016-01)An analysis of dijet events in PbPb and pp collisions is performed to explore the properties of energy loss by partons traveling in a quark-gluon plasma. Data are collected at a nucleon-nucleon center-of-mass energy of ... -
Measurements of differential and double-differential Drell-Yan cross sections in proton-proton collisions at root s=8 TeV
Khachatryan, V.; Işıldak, Bora (Springer Nature, 2015-04)Measurements of the differential and double-differential Drell–Yan cross sections in the dielectron and dimuon channels are presented. They are based on proton–proton collision data at s√=8TeVs=8TeV recorded with the CMS ... -
Measurements of differential cross sections for associated production of a W boson and jets in proton-proton collisions at root s=8 TeV
Khachatryan, V.; Işıldak, Bora (APS, 2017)Differential cross sections for a W boson produced in association with jets are measured in a data sample of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the CMS detector and corresponding to ... -
Measurements of differential production cross sections for a Z boson in association with jets in pp collisions at s√=8s=8 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2017-04)Cross sections for the production of a Z boson in association with jets in proton-proton collisions at a centre-of-mass energy of s√=8s=8 TeV are measured using a data sample collected by the CMS experiment at the LHC ... -
Measurements of jet multiplicity and differential production cross sections of Z plus jets events in proton-proton collisions at root s=7 TeV
Khachatryan, V.; Işıldak, Bora (American Physical Society, 2015-03-01)Measurements of differential cross sections are presented for the production of a Z boson and at least one hadronic jet in proton-proton collisions at s√=7 TeV, recorded by the CMS detector, using a data sample corresponding ... -
Measurements of the associated production of a Z boson and b jets in pp collisions at s√=8TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2017-11-08)Measurements of the associated production of a Z boson with at least one jet originating from a b quark in proton-proton collisions at root s = 8 TeV are presented. Differential cross sections are measured with data collected ... -
Measurements of the tt¯tt¯ production cross section in lepton+jets final states in pp collisions at 8 TeVTeV and ratio of 8 to 7 TeVTeV cross sections
Khachatryan, V.; Işıldak, Bora (Springer International, 2017)A measurement of the top quark pair production () cross section in proton-proton collisions at the centre-of-mass energy of 8 is presented using data collected with the CMS detector at the LHC, corresponding to an integrated ... -
Measurements of the ZZ production cross sections in the 2l2 nu channel in proton-proton collisions at root s=7 and 8 TeV and combined constraints on triple gauge couplings
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2015)Measurements of the ZZ production cross sections in proton-proton collisions at center-of-mass energies of 7 and 8 TeV are presented. Candidate events for the leptonic decay mode ZZ -> 2l2 nu. where l denotes an electron ... -
Measurements of the ϒ(1S), ϒ(2S), and ϒ(3S) differential cross sections in pp collisions at s=7TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2015-10-07)Differential cross sections as a function of transverse momentum pT are presented for the production of ϒ(nS) (n = 1, 2, 3) states decaying into a pair of muons. Data corresponding to an integrated luminosity of 4.9View ... -
Measurements of tt¯ spin correlations and top quark polarization using dilepton final states in pp collisions at s√=8 T
Khachatryan, V.; Işıldak, Bora (American Physical Society., 2016-03-01)Measurements of the top quark-antiquark (tt¯) spin correlations and the top quark polarization are presented for tt¯ pairs produced in pp collisions at s√=8 TeV. The data correspond to an integrated luminosity of 19.5 fb−1 ... -
Measurements of tt‾ charge asymmetry using dilepton final states in pp collisions at s=8TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2016-09-10)The charge asymmetry in View the MathML source events is measured using dilepton final states produced in pp collisions at the LHC at View the MathML source. The data sample, collected with the CMS detector, corresponds ... -
Multiplicity and rapidity dependence of strange hadron production in pp, pPb, and PbPb collisions at the LHC
Khachatryan, V.; Işıldak, Bora (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 ... -
Nuclear effects on the transverse momentum spectra of charged particles in pPb collisions at root s(NN)=5.02 TeV
Khachatryan, V.; Işıldak, Bora (Springer Nature, 2015-05)Transverse momentum spectra of charged particles are measured by the CMS experiment at the CERN LHC in pPb collisions at sNN−−−√=5.02sNN=5.02 TeVTeV , in the range 0.4<pT<1200.4<pT<120 GeV/cGeV/c and pseudorapidity ... -
Observation of charge-dependent azimuthal correlations in p-Pb collisions and its implication for the search for the chiral magnetic effect
Khachatryan, V.; Işıldak, Bora (APS, 2017)Charge-dependent azimuthal particle correlations with respect to the second-order event plane in p−Pb and PbPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV have been studied with the CMS experiment at ... -
Observation of gamma(1S) pair production in proton-proton collisions at root s=8 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing , 2017)Pair production of gamma(1S) mesons is observed at the LHC in proton-proton collisions at root s = 8 TeV by the CMS experiment in a data sample corresponding to an integrated luminosity of 20.7 fb(-1). Both gamma(1S) ...
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