Browsing by Author "Işıldak, Bora"
Now showing items 201-220 of 931
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Measurement of spin correlations in tt production using the matrix element method in the muon+jets final state in pp collisions at √s=8 TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2016-07-10)The consistency of the spin correlation strength in top quark pair production with the standard model (SM) prediction is tested in the muon+jets final state. The events are selected from pp collisions, collected by the CMS ... -
Measurement of the associated production of a Z boson with charm or bottom quark jets in proton-proton collisions at s=13 TeV
Sirunyan, A. M.; Işıldak, Bora (American Physical Society, 2020-08-19)Ratios of cross sections, sigma(Z + c jets)/sigma(Z + jets), sigma(Z + b jets)/sigma(Z + jets), and sigma(Z + c jets)/sigma(Z + b jets) in the associated production of a Z boson with at least one charm or bottom quark jet ... -
Measurement of the average very forward energy as a function of the track multiplicity at central pseudorapidities in proton-proton collisions at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2019-11)The average total energy as well as its hadronic and electromagnetic components are measured with the CMS detector at pseudorapidities -6.6 < eta < -5.2 in proton-proton collisions at a centre-of-mass energy root s = 13 ... -
Measurement of the azimuthal anisotropy of neutral pions in Pb-Pb collisions at root S-NN=2.76 TeV
Chatrchyan, S.; Işıldak, Bora (American Physical Society, 2013-01-25)irst measurements of the azimuthal anisotropy of neutral pions produced in Pb-Pb collisions at a center-of-mass energy of root S-NN = 2.76 TeV are presented. The amplitudes of the second Fourier component (upsilon(2)) of ... -
Measurement of the azimuthal anisotropy of Υ(1S) and Υ(2S) mesons in PbPb collisions at √sNN = 5.02 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2021-08-10)The second-order Fourier coefficients (v2) characterizing the azimuthal distributions of [Formula presented] and [Formula presented] mesons produced in PbPb collisions at s =5.02TeV are studied. The [Formula presented] ... -
Measurement of the B-s(0) ->mu(+)mu(-) branching fraction and search for B-0 -> mu(+)mu(-) with the CMS experiment
Chatrchyan, S.; Işıldak, Bora (American Physical Society, 2013-09-06)Results are presented from a search for the rare decays B-s(0) -> mu(+) mu(-) and B-0 -> mu(+) mu(-) in pp collisions at root s = 7 and 8 TeV, with data samples corresponding to integrated luminosities of 5 and 20 fb(-1), ... -
Measurement of the charge asymmetry in top quark pair production in pp collisions at s =8 TeV using a template method
Khachatryan, V.; Işıldak, Bora (2016-02-01)The charge asymmetry in the production of top quark and antiquark pairs is measured in proton-proton collisions at a center-of-mass energy of 8 TeV. The data, corresponding to an integrated luminosity of 19.6 fb−1, were ... -
Measurement of the CP-violating phase ϕs in the Bs 0→J/ψϕ(1020)→μ+μ−K+K− channel in proton-proton collisions at s=13TeV
Sirunyan, A. M.; Işıldak, Bora (Springer, 2021-05-10)The CP -violating weak phase ϕs and the decay width difference ΔΓs between the light and heavy Bs 0 mass eigenstates are measured with the CMS detector at the LHC in a sample of 48500 reconstructed Bs 0→J/ψϕ(1020)→μ+μ−K+K− ... -
Measurement of the CP-violating weak phase φ<inf>s</inf> and the decay width difference δΓc using the B<inf>s</inf>0→J/ψφ(1020) decay channel in pp collisions at √ s=8 TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2016)The CP-violating weak phase ϕs of the View the MathML source meson and the decay width difference ΔΓs of the View the MathML source light and heavy mass eigenstates are measured with the CMS detector at the LHC using a ... -
Measurement of the cross section and angular correlations for associated production of a Z boson with b hadrons in pp collisions at s√ = 7 TeV
Chatrchyan, S.; Işıldak, Bora (Elsevier, 2013-12)A study of proton-proton collisions in which two b hadrons are produced in association with a Z boson is reported. The collisions were recorded at a centre-of-mass energy of 7 TeVwith the CMS detector at the LHC, for an ... -
Measurement of the cross section for electroweak production of a Z boson, a photon and two jets in proton-proton collisions at √s = 13 TeV and constraints on anomalous quartic couplings
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2020-06-10)A measurement is presented of the cross section for electroweak production of a Z boson and a photon in association with two jets (Z gamma jj) in proton-proton collisions. The Z boson candidates are selected through their ... -
Measurement of the cross section for electroweak production of Zγ in association with two jets and constraints on anomalous quartic gauge couplings in proton–proton collisions at √s = 8 TeV
Işıldak, Bora (Elsevier, 2017)A measurement is presented of the cross section for the electroweak production of a Z boson and a photon in association with two jets in proton-proton collisions at root s = 8 TeV. The Z bosons are identified through their ... -
Measurement of the cross section for t¯t production with additional jets and b jets in pp collisions at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2020-07-20)Measurements of the cross section for the production of top quark pairs in association with a pair of jets from bottom quarks (sigma(t (t) over barb (b) over bar)) and in association with a pair of jets from quarks of any ... -
Measurement of the cross section of top quark-antiquark pair production in association with a W boson in proton-proton collisions at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2023-07-28)The production of a top quark-antiquark pair in association with a W boson (t (t) over barW) is measured in proton-proton collisions at a center-of-mass energy of 13TeV. The analyzed data was recorded by the CMS experiment ... -
Measurement of the cross section ratio σttbb/σttjj in pp collisions at √s=8 TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2015-06-30)The first measurement of the cross section ratio View the MathML source is presented using a data sample corresponding to an integrated luminosity of 19.6 fb−1 collected in pp collisions at View the MathML source with the ... -
Measurement of the differential and double-differential Drell-Yan cross sections in proton-proton collisions at s√ = 7 TeV
Chatrchyan, S.; Işıldak, Bora (Springer Science+Business Media, 2013-12)Measurements of the differential and double-differential Drell-Yan cross sections are presented using an integrated luminosity of 4.5 (4.8) fb−1 in the dimuon (dielectron) channel of proton-proton collision data recorded ... -
Measurement of the differential cross section and charge asymmetry for inclusive pp→W±+Xpp→W±+X production at s√=8s=8 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2016)The differential cross section and charge asymmetry for inclusive pp→W±+X→μ±ν+Xpp→W±+X→μ±ν+X production at s√=8TeVs=8TeV are measured as a function of muon pseudorapidity. The data sample corresponds to an integrated ... -
Measurement of the differential cross section for top quark pair production in pp collisions at root s=8TeV
Khachatryan, V.; Işıldak, Bora (Springer Nature, 2015-11)The normalized differential cross section for top quark pair ( tt¯tt¯ ) production is measured in pp collisions at a centre-of-mass energy of 8 TeVTeV at the CERN LHC using the CMS detector in data corresponding to an ... -
Measurement of the differential cross sections for top quark pair production as a function of kinematic event variables in pp collisions at root s=7 and 8 TeV
Khachatryan, V.; Işıldak, Bora (American Physical Society, 2016-09-01)Measurements are reported of the normalized differential cross sections for top quark pair production with respect to four kinematic event variables: the missing transverse energy; the scalar sum of the jet transverse ... -
Measurement of the differential Drell-Yan cross section in proton-proton collisions at s√ = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2019-12-09)Measurements of the differential cross section for the Drell-Yan process, based on proton-proton collision data at a centre-of-mass energy of 13 TeV, collected by the CMS experiment, are presented. The data correspond to ...
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