Browsing by Author "Sirunyan, A. M."
Now showing items 121-140 of 344
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Measurements of Higgs boson production cross sections and couplings in the diphoton decay channel at s√ = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer, 2021-07-07)Measurements of Higgs boson production cross sections and couplings in events where the Higgs boson decays into a pair of photons are reported. Events are selected from a sample of proton-proton collisions at s = 13 TeV ... -
Measurements of jet charge with dijet events in pp collisions at √s = 8 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer International Publishing, 2017-10-19)Jet charge is an estimator of the electric charge of a quark, antiquark, or gluon initiating a jet. It is based on the momentum-weighted sum of the electric charges of the jet constituents. Measurements of three charge ... -
Measurements of pp → ZZ production cross sections and constraints on anomalous triple gauge couplings at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer, 2021-03-01)The production of Z boson pairs in proton–proton (p p) collisions, p p → (Z / γ∗) (Z / γ∗) → 2 ℓ2 ℓ′, where ℓ, ℓ′= e or μ , is studied at a center-of-mass energy of 13TeV with the CMS detector at the CERN LHC. The data ... -
Measurements of production cross sections of polarized same-sign W boson pairs in association with two jets in proton-proton collisions at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2021-01-10)The first measurements of production cross sections of polarized same-sign W±W± boson pairs in proton-proton collisions are reported. The measurements are based on a data sample collected with the CMS detector at the LHC ... -
Measurements of production cross sections of the Higgs boson in the four-lepton final state in proton–proton collisions at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer, 2021-06-02)Production cross sections of the Higgs boson are measured in the H → Z Z → 4 ℓ (ℓ=e,μ) decay channel. A data sample of proton–proton collisions at a center-of-mass energy of 13Te, collected by the CMS detector at the LHC ... -
Measurements of production cross sections of WZ and same-sign WW boson pairs in association with two jets in proton-proton collisions at √s=13 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2020-10-10)Measurements of production cross sections of WZ and same-sign WW boson pairs in association with two jets in proton-proton collisions at s=13TeV at the LHC are reported. The data sample corresponds to an integrated luminosity ... -
Measurements of properties of the Higgs boson decaying to a W boson pair in pp collisions at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2019-04-10)Measurements of the production of the standard model Higgs boson decaying to a W boson pair are reported. The W+ W- candidates are selected in events with an oppositely charged lepton pair, large missing transverse momentum, ... -
Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at √sNN = 5.02 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2017-09-10)The CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton–lead (pPb) collisions at a nucleon–nucleon center-of-mass energy of sNN=5.02TeV, as well ... -
Measurements of the differential cross sections of the production of Z + jets and γ + jets and of Z boson emission collinear with a jet in pp collisions at s√ = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer, 2021-05-31)Measurements of the differential cross sections of Z + jets and γ + jets production, and their ratio, are presented as a function of the boson transverse momentum. Measurements are also presented of the angular distribution ... -
Measurements of the differential jet cross section as a function of the jet mass in dijet events from proton-proton collisions at s√=13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2018-11)Measurements of the differential jet cross section are presented as a function of the jet mass in dijet events, in bins of jet transverse momentum, with and without a jet grooming algorithm. The data have been recorded by ... -
Measurements of the Higgs boson width and anomalous H V V couplings from on-shell and off-shell production in the four-lepton final state
Sirunyan, A. M.; Işıldak, Bora (American Physical Society, 2019-06-11)Studies of on-shell and off-shell Higgs boson production in the four-lepton final state are presented, using data from the CMS experiment at the LHC that correspond to an integrated luminosity of 80.2 fb(-1) at a center-of-mass ... -
Measurements of the pp → WZ inclusive and differential production cross sections and constraints on charged anomalous triple gauge couplings at s√ = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2019-04-18)The WZ production cross section is measured in proton-proton collisions at a centre-of-mass energy = 13 TeV using data collected with the CMS detector, corresponding to an integrated luminosity of 35.9 fb(-1). The inclusive ... -
Measurements of the pp → Wγγ and pp → Zγγ cross sections and limits on anomalous quartic gauge couplings at √s = 8 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer International Publishing, 2017-10-11)Measurements are presented of Wγγ and Zγγ production in proton-proton collisions. Fiducial cross sections are reported based on a data sample corresponding to an integrated luminosity of 19.4 fb−1 collected with the CMS ... -
Measurements of the W boson rapidity, helicity, double-differential cross sections, and charge asymmetry in pp collisions at √ s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (American Physical Society, 2020-11-20)The differential cross section and charge asymmetry for inclusive W boson production at root s = 13 TeV is measured for the two transverse polarization states as a function of the W boson absolute rapidity. The measurement ... -
Measurements of triple-differential cross sections for inclusive isolated-photon+jet events in pp collisions at s√=8 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2019-11)Measurements are presented of the triple-differential cross section for inclusive isolated-photon+jet events in pp collisions at root s = 8 TeV as a function of photon transverse momentum (p(T)(gamma)), photon pseudorapidity ... -
Measurements of tt¯ differential cross sections in proton-proton collisions at s√=13 TeV using events containing two leptons
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2019-02-22)Measurements of differential top quark pair t (t) over bar cross sections using events produced in proton-proton collisions at a centre-of-mass energy of 13 TeV containing two oppositely charged leptons are presented. The ... -
Measurements of t¯tH production and the CP structure of the Yukawa interaction between the Higgs Boson and top quark in the diphoton decay channel
Sirunyan, A. M.; Işıldak, Bora (American Physical Society, 2020-08-05)The first observation of the (tt) over barH process in a single Higgs boson decay channel with the full reconstruction of the final state (H -> gamma gamma) is presented, with a significance of 6.6 standard deviations ... -
Measurements with silicon photomultipliers of dose-rate effects in the radiation damage of plastic scintillator tiles in the CMS hadron endcap calorimeter
Sirunyan, A. M.; Işıldak, Bora (IOP Publishing, 2020-06)Measurements are presented of the reduction of signal output due to radiation damage for two types of plastic scintillator tiles used in the hadron endcap (HE) calorimeter of the CMS detector. The tiles were exposed to ... -
Mechanical stability of the CMS strip tracker measured with a laser alignment system
Sirunyan, A. M.; Işıldak, Bora (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 ... -
Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at root √sNN = 2.76 and 5.02 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2020-06-13)Anisotropies in the initial energy density distribution of the quark-gluon plasma created in high energy heavy ion collisions lead to anisotropies in the azimuthal distributions of the final-state particles known as ...
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