Browsing by Author "Işıldak, Bora"
Now showing items 441-460 of 931
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Precision measurement of the W boson decay branching fractions in proton-proton collisions at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (American Physical Society, 2022-04-26)The leptonic and inclusive hadronic decay branching fractions of the W boson are measured using proton-proton collision data collected at s=13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated ... -
Probing charm quark dynamics via multiparticle correlations in Pb-Pb collisions at √s NN = 5.02 TeV
Tumasyan, A.; Işıldak, Bora (American Physical Society, 2022-07-05)Multiparticle azimuthal correlations of prompt D0 mesons are measured in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of sNN=5.02 TeV. For the first time, a four-particle cumulant method is used to extract ... -
Probing color coherence effects in pp collisions at root s=7 TeV
Chatrchyan, S.; Işıldak, Bora (Springer Science+Business Media, 2014-06)A study of color coherence effects in pp collisions at a center-of-mass energy of 7 is presented. The data used in the analysis were collected in 2010 with the CMS detector at the LHC and correspond to an integrated ... -
Probing effective field theory operators in the associated production of top quarks with a Z boson in multilepton final states at s√ = 13 TeV
Tonon, N.; Işıldak, Bora (Springer, 2021-12-13)A search for new top quark interactions is performed within the framework of an effective field theory using the associated production of either one or two top quarks with a Z boson in multilepton final states. The data ... -
Probing heavy majorana neutrinos and the weinberg operator through vector boson fusion processes in proton-proton collisions at √s = 13 TeV
Tumasyan, A.; Işıldak, Bora (American Physical Society, 2023-07-06)The first search exploiting the vector boson fusion process to probe heavy Majorana neutrinos and the Weinberg operator at the LHC is presented. The search is performed in the same-sign dimuon final state using a proton-proton ... -
The production of isolated photons in PbPb and pp collisions at √sNN = 5.02 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2020-07-17)The transverse energy (ET gamma) spectra of photons isolated from other particles are measured using proton-proton (pp) and lead-lead (PbPb) collisions at the LHC at root s(NN) = 5.02 TeV with integrated luminosities of ... -
Production of leading charged particles and leading charged-particle jets at small transverse momenta in pp collisions at s =8 TeV
Khachatryan, V.; Işıldak, Bora (2015-12-01)The per-event yield of the highest transverse momentum charged particle and charged-particle jet, integrated above a given pminT threshold starting at pminT=0.8 and 1 GeV, respectively, is studied in pp collisions at ... -
Production of Λc + baryons in proton-proton and lead-lead collisions at √sNN=5.02 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2020-04-10)The transverse momentum (P-T) spectra of inclusively produced A c P baryons are measured via the exclusive decay channel Lambda(+)(c) -> pK(-)pi(+) using the CMS detector at the LHC. Spectra are measured as a function of ... -
Pseudorapidity dependence of long-range two-particle correlations in pPb collisions at √sNN = 5.02 TeV
Khachatryan, V.; Işıldak, Bora (American Physical Society, 2017-07-31)Two-particle correlations in pPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV are studied as a function of the pseudorapidity separation (Delta eta) of the particle pair at small relative azimuthal ... -
Pseudorapidity distribution of charged hadrons in proton-proton collisions at s=13 TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2015-12-17)The pseudorapidity distribution of charged hadrons in pp collisions at View the MathML source is measured using a data sample obtained with the CMS detector, operated at zero magnetic field, at the CERN LHC. The yield of ... -
Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at √sNN=5.44 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2019-12-10)Measurements of the pseudorapidity distributions of charged hadrons produced in xenon-xenon collisions at a nucleon-nucleon centre-of-mass energy of root S-NN = 5.44 TeV are presented. The measurements are based on data ... -
Publisher Correction: Observation of triple J/ψ meson production in proton-proton collisions
Tumasyan, A.; Işıldak, Bora (Nature Research, 2023-12-12)Correction to: Nature Physics, published online 19 January 2023. In the version of the article initially published, the second affiliation of T. Elkafrawy was incorrect and is now shown as Ain Shams University, Cairo, Egypt ... -
Rapidity distributions in exclusive Z plus jet and gamma plus jet events in pp collisions at root s=7 TeV
Chatrchyan, S.; Işıldak, Bora (American Physical Society, 2013-12-01)Rapidity distributions are presented for events containing either a Z boson or a photon with a single jet in proton-proton collisions produced at the CERN LHC. The data, collected with the CMS detector at s√=7 TeV, ... -
Recent results from the CMS experiment at the LHC
Işıldak, Bora (EDP Sciences, 2014)Numerous studies on Jet Production, Vector Boson Production, V+Jets Production and Multi-Boson Production have been carried out by the Compact Muon Solenoid (CMS) Collaboration to test perturbative quantum chromodynamics ... -
Reconstruction and identification of τ lepton decays to hadrons and ν<inf>τ</inf> at CMS
Khachatryan, V.; Işıldak, Bora (2016-01)This paper describes the algorithms used by the CMS experiment to reconstruct and identify τ → hadrons + ντ decays during Run 1 of the LHC. The performance of the algorithms is studied in proton-proton collisions recorded ... -
Reconstruction of decays to merged photons using end-to-end deep learning with domain continuation in the CMS detector
Tumasyan, A.; Işıldak, Bora (American Physical Society, 2023-09-05)A novel technique based on machine learning is introduced to reconstruct the decays of highly Lorentz-boosted particles. Using an end-to-end deep learning strategy, the technique bypasses existing rule-based particle ... -
Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions
Sirunyan, A. M.; Işıldak, Bora (IOP Publishing, 2020-10)A template fitting technique for reconstructing the amplitude of signals produced by the lead tungstate crystals of the CMS electromagnetic calorimeter is described. This novel approach is designed to suppress the contribution ... -
Relative modification of prompt psi(2S) and J/psi yields from pp to PbPb collisions at root(S)(NN)=5.02 TeV
Sirunyan, A. M.; Işıldak, Bora (American Physical Society, 2017)The relative modification of the prompt psi(2S) and J/psi yields from pp to PbPb collisions, at the center-of- mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on pp and PbPb data samples ... -
Relative modification of prompt ψ (2S) and J / ψ yields from pp to PbPb collisions at √sNN = 5.02 TeV
Sirunyan, A. M.; Işıldak, Bora (American Physical Society, 2017)The relative modification of the prompt ψð2SÞ and J=ψ yields from pp to PbPb collisions, at the centerof-mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on pp and PbPb data samples collected ... -
Running of the top quark mass from proton-proton collisions at √s=13 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2020-04-10)The running of the top quark mass is experimentally investigated for the first time. The mass of the top quark in the modified minimal subtraction ((MS) over bar) renormalization scheme is extracted from a comparison of ...
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