Browsing by Author "Tumasyan, A."
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Analysis of the CP structure of the Yukawa coupling between the Higgs boson and τ leptons in proton-proton collisions at s√ = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2022-06-03)The first measurement of the CP structure of the Yukawa coupling between the Higgs boson and τ leptons is presented. The measurement is based on data collected in proton-proton collisions at s = 13 TeV by the CMS detector ... -
Combined searches for the production of supersymmetric top quark partners in proton–proton collisions at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2021-11-03)A combination of searches for top squark pair production using proton–proton collision data at a center-of-mass energy of 13Te at the CERN LHC, corresponding to an integrated luminosity of 137fb-1 collected by the CMS ... -
Evidence for WW/WZ vector boson scattering in the decay channel ℓνqq produced in association with two jets in proton-proton collisions at √s = 13 TeVeV
Tumasyan, A.; Işıldak, Bora (Elsevier, 2022-11-10)Evidence is reported for electroweak (EW) vector boson scattering in the decay channel ℓνqq of two weak vector bosons WV (V=W or Z), produced in association with two parton jets. The search uses a data set of proton-proton ... -
First search for exclusive diphoton production at high mass with tagged protons in proton-proton collisions at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (American Physical Society, 2022-06-28)A search for exclusive two-photon production via photon exchange in proton-proton collisions, pp→pγγp with intact protons, is presented. The data correspond to an integrated luminosity of 9.4 fb-1 collected in 2016 using ... -
Identification of hadronic tau lepton decays using a deep neural network
Tumasyan, A.; Işıldak, Bora (IOP Publishing, 2022-07)A new algorithm is presented to discriminate reconstructed hadronic decays of tau leptons (τ h) that originate from genuine tau leptons in the CMS detector against τ h candidates that originate from quark or gluon jets, ... -
Inclusive and differential cross section measurements of single top quark production in association with a Z boson in proton-proton collisions at s√ = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2022-02-14)Inclusive and differential cross sections of single top quark production in association with a Z boson are measured in proton-proton collisions at a center-of-mass energy of 13 TeV with a data sample corresponding to an ... -
Inclusive nonresonant multilepton probes of new phenomena at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (American Physical Society, 2022-06-14)An inclusive search for nonresonant signatures of beyond the standard model (SM) phenomena in events with three or more charged leptons, including hadronically decaying τ leptons, is presented. The analysis is based on a ... -
Measurement and QCD analysis of double-differential inclusive jet cross sections in proton-proton collisions at s√ = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2022-02-17)A measurement of the inclusive jet production in proton-proton collisions at the LHC at s = 13 TeV is presented. The double-differential cross sections are measured as a function of the jet transverse momentum pT and the ... -
Measurement of differential t¯t production cross sections in the full kinematic range using lepton + jets events from proton-proton collisions at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (American Physical Society, 2021-11-30)Measurements of differential and double-differential cross sections of top-quark pair (tt¯) production are presented in the lepton+jets channels with a single electron or muon and jets in the final state. The analysis ... -
Measurement of double-parton scattering in inclusive production of four jets with low transverse momentum in proton-proton collisions at s√ = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2022-01-28)A measurement of inclusive four-jet production in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The transverse momenta of jets within |η| < 4.7 are required to exceed 35, 30, 25, and 20 GeV ... -
Measurement of prompt open-charm production cross sections in proton-proton collisions at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2021-12-01)The production cross sections for prompt open-charm mesons in proton-proton collisions at a center-of-mass energy of 13 TeV are reported. The measurement is performed using a data sample collected by the CMS experiment ... -
Measurement of the Drell-Yan forward-backward asymmetry at high dilepton masses in proton-proton collisions at s√ = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2022-08)A measurement of the forward-backward asymmetry of pairs of oppositely charged leptons (dimuons and dielectrons) produced by the Drell-Yan process in proton-proton collisions is presented. The data sample corresponds to ... -
Measurement of the electroweak production of Z γ and two jets in proton-proton collisions at √s = 13 TeV and constraints on anomalous quartic gauge couplings
Tumasyan, A.; Işıldak, Bora (American Physical Society, 2021-10-05)The first observation of the electroweak (EW) production of a Z boson, a photon, and two forward jets (Zγjj) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. A data set corresponding to an ... -
Measurement of the Higgs boson width and evidence of its off-shell contributions to ZZ production
Tumasyan, A.; Işıldak, Bora (Nature Research, 2022-11)Since the discovery of the Higgs boson in 2012, detailed studies of its properties have been ongoing. Besides its mass, its width—related to its lifetime—is an important parameter. One way to determine this quantity is to ... -
Measurement of the inclusive and differential higgs boson production cross sections in the decay mode to a pair of τ leptons in pp collisions at √ s = 13 TeV
Tumasyan, A.; Işıldak, Bora (American Physical Society, 2022-02-23)Measurements of the inclusive and differential fiducial cross sections of the Higgs boson are presented, using the τ lepton decay channel. The differential cross sections are measured as functions of the Higgs boson ... -
Measurement of the inclusive and differential t t¯ γ cross sections in the single-lepton channel and EFT interpretation at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2021-12-23)The production cross section of a top quark pair in association with a photon is measured in proton-proton collisions at a center-of-mass energy of 13 TeV. The data set, corresponding to an integrated luminosity of 137 ... -
Measurement of the inclusive and differential tt¯ γ cross sections in the dilepton channel and effective field theory interpretation in proton-proton collisions at s√ = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2022-05-16)The production cross section of a top quark pair in association with a photon is measured in proton-proton collisions in the decay channel with two oppositely charged leptons (e±μ∓, e+e−, or μ+μ−). The measurement is ... -
Measurement of the inclusive and differential WZ production cross sections, polarization angles, and triple gauge couplings in pp collisions at s√ = 13 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2022-07)The associated production of a W and a Z boson is studied in final states with multiple leptons produced in proton-proton (pp) collisions at a centre-of-mass energy of 13 TeV using 137 fb−1 of data collected with the CMS ... -
Measurement of the inclusive tt¯ production cross section in proton-proton collisions at s√ = 5.02 TeV
Tumasyan, A.; Işıldak, Bora (Springer, 2022-04-22)The top quark pair production cross section is measured in proton-proton collisions at a center-of-mass energy of 5.02 TeV. The data were collected in a special LHC low-energy and low-intensity run in 2017, and correspond ... -
Measurement of the production cross section for Z + b jets in proton-proton collisions at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (American Physical Society, 2022-05-31)The measurement of the cross section for the production of a Z boson, decaying to dielectrons or dimuons, in association with at least one bottom quark jet is performed with proton-proton collision data at s=13 TeV. The ...
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