Browsing by Author "Sirunyan, A. M."
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Measurement of prompt ψ(2S) production cross sections in proton–lead and proton–proton collisions at √sNN = 5.02 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2019-03-10)Measurements of prompt psi(2S) meson production cross sections in proton-lead (pPb) and proton-proton (pp) collisions at a nucleon-nucleon center-of-mass energy of root s(NN) = 5.02 TeV are reported. The results are based ... -
Measurement of properties of B 0 s → µ + µ − decays and search for B 0 → µ + µ − with the CMS experiment
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2020-04-28)Results are reported for the B 0s ! + branching fraction and effective lifetime and from a search for the decay B0 ! + . The analysis uses a data sample of proton-proton collisions accumulated by the CMS experiment in 2011, ... -
Measurement of quark- and gluon-like jet fractions using jet charge in PbPb and pp collisions at 5.02 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2020-07-17)The momentum-weighted sum of the electric charges of particles inside a jet, known as jet charge, is sensitive to the electric charge of the particle initiating the parton shower. This paper presents jet charge distributions ... -
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 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 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 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 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 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 ... -
Measurement of the energy density as a function of pseudorapidity in proton–proton collisions at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2019-05-07)A measurement of the energy density in proton-proton collisions at a centre-of-mass energy of sTeV is presented. The data have been recorded with the CMS experiment at the LHC during low luminosity operations in 2015. The ... -
Measurement of the groomed jet mass in PbPb and pp collisions at √sNN=5.02 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2018-10)A measurement of the groomed jet mass in PbPb and pp collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV with the CMS detector at the LHC is presented. Jet grooming is a recursive procedure which sequentially ... -
A measurement of the Higgs boson mass in the diphoton decay channel
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2020-06-10)A measurement of the mass of the Higgs boson in the diphoton decay channel is presented. This analysis is based on 35.9 fb(-1) of proton-proton collision data collected during the 2016 LHC running period, with the CMS ... -
Measurement of the Higgs boson production rate in association with top quarks in final states with electrons, muons, and hadronically decaying tau leptons at s√=13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer, 2021-04-30)The rate for Higgs (H) bosons production in association with either one (t H) or two (t t ¯ H) top quarks is measured in final states containing multiple electrons, muons, or tau leptons decaying to hadrons and a neutrino, ... -
Measurement of the inclusive and differential Higgs boson production cross sections in the leptonic WW decay mode at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer, 2021-03-01)Measurements of the fiducial inclusive and differential production cross sections of the Higgs boson in proton-proton collisions at s = 13 TeV are performed using events where the Higgs boson decays into a pair of W bosons ... -
Measurement of the inclusive energy spectrum in the very forward direction in proton-proton collisions at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (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 ... -
Measurement of the jet mass distribution and top quark mass in hadronic decays of boosted top quarks in pp collisions at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (American Physical Society, 2020-05-21)A measurement is reported of the jet mass distribution in hadronic decays of boosted top quarks produced in pp collisions at root s = 13 TeV. The data were collected with the CMS detector at the LHC and correspond to an ... -
Measurement of the jet mass in highly boosted tt events from pp collisions at √s = 8 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer International Publishing, 2017)The first measurement of the jet mass mjetmjet of top quark jets produced in tt¯tt¯ events from pp collisions at s√=8s=8 TeVTeV is reported for the jet with the largest transverse momentum pTpT in highly boosted hadronic ... -
Measurement of the semileptonic t t ¯ + γ production cross section in pp collisions at √s=8 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer International Publishing, 2017-10-02)A measurement of the cross section for top quark-antiquark ( tt¯tt¯ ) pairs produced in association with a photon in proton-proton collisions at s√=8s=8 TeV is presented. The analysis uses data collected with the CMS ... -
Measurement of the single top quark and antiquark production cross sections in the tchannel and their ratio in proton-proton collisions at √s=13 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2020-01-10)Measurements of the cross sections for the production of single top quarks and antiquarks in the t channel, and their ratio, are presented for proton-proton collisions at a center-of-mass energy of 13 TeV. The data set ...
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