Listar por autor "Tumasyan, Armen"
Mostrando ítems 1-20 de 118
-
Analysis of the CP structure of the Yukawa coupling between the Higgs boson and τ leptons in proton-proton collisions √s = 13 TeV
Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2022) [Artículo de periódico]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 ... -
Azimuthal anisotropy of dijet events in PbPb collisions at √sNN = 5.02 TeV
Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2023) [Artículo de periódico]The path-length dependent parton energy loss within the dense partonic medium created in lead-lead collisions at a nucleon-nucleon center-of-mass energy of √sNN = 5.02 TeV is studied by determining the azimuthal anisotropies ... -
Azimuthal correlations within exclusive dijets with large momentum transfer in photon-lead collisions
Tumasyan, Armen; Silveira, Gustavo Gil da; CMS Collaboration (2023) [Artículo de periódico]The structure of nucleons is multidimensional and depends on the transverse momenta, spatial geometry, and polarization of the constituent partons. Such a structure can be studied using high-energy photons produced in ... -
CMS PYTHIA 8 colour reconnection tunes based on underlying-event data
Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2023) [Artículo de periódico]New sets of parameter tunes for two of the colour reconnection models, quantum chromodynamics-inspired and gluon-move, implemented in the pythia 8 event generator, are obtained based on the default CMS pythia 8 underlying-event ... -
Combined searches for the production of supersymmetric top quark partners in proton–proton collisions at √ s = 13 TeV
Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2021) [Artículo de periódico]A combination of searches for top squark pair production using proton–proton collision data at a center of-mass energy of 13 TeV at the CERN LHC, correspond ing to an integrated luminosity of 137 fb−1 collected by the CMS ... -
Constraints on anomalous Higgs boson couplings to vector bosons and fermions from the production of Higgs bosons using the ττ final state
Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2023) [Artículo de periódico]A study of anomalous couplings of the Higgs boson to vector bosons and fermions is presented. The data were recorded by the CMS experiment at a center-of-mass energy of pp collisions at the LHC of 13 TeVand correspond to ... -
Evidence for four-top quark production in proton-proton collisions at √s = 13 TeV
Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2023) [Artículo de periódico]The production of four top quarks (ttt¯ t)¯ is studied with LHC proton-proton collision data samples collected by the CMS experiment at a center-of-mass energy of 13 TeV, and corresponding to integrated luminosities of up ... -
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 TeV
Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2022) [Artículo de periódico]Evidence is reported for electroweak (EW) vector boson scattering in the decay channel νqq 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, Armen; Silveira, Gustavo Gil da; CMS Collaboration; TOTEM Collaboration (2022) [Artículo de periódico]A search for exclusive two-photon production via photon exchange in proton-proton collisions, p p → p γ γ p with intact protons, is presented. The data correspond to an integrated luminosity of 9.4 fb −1 collected in 2016 ... -
Identification of hadronic tau lepton decays using a deep neural network
Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2022) [Artículo de periódico]A new algorithm is presented to discriminate reconstructed hadronic decays of tau leptons (τh) that originate from genuine tau leptons in the CMS detector against τh 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, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2022) [Artículo de periódico]Inclusive and differential cross sections of single top quark production in as sociation 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, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2022) [Artículo de periódico]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, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2022) [Artículo de periódico]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 cross sections for the production of a Z boson in association with jets in proton-proton collisions at √s = 13 TeV
Tumasyan, Armen; Silveira, Gustavo Gil da; CMS Collaboration (2023) [Artículo de periódico]A measurement is presented of the production of Z bosons that decay into two electrons or muons in association with jets, in proton-proton collisions at a center-of-mass energy of 13 TeV. The data were recorded by the CMS ... -
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, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2021) [Artículo de periódico]Measurements of differential and double-differential cross sections of top-quark pair (t¯t) production are presented in the lepton þ 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, Armen; Silveira, Gustavo Gil da; CMS Collaboration (2022) [Artículo de periódico]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 inclusive and differential cross sections for single top quark production in association with a W boson in proton-proton collisions at √s = 13 TeV
Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2023) [Artículo de periódico]Measurements of the inclusive and normalised differential cross sections are presented for the production of single top quarks in association with a W boson in proton-proton collisions at a centre-of-mass energy of 13 TeV. ... -
Measurement of prompt open-charm production cross sections in proton-proton collisions at √s = 13 TeV
Tumasyan, Armen; Silveira, Gustavo Gil da; CMS Collaboration (2021) [Artículo de periódico]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 B0 s → μ+μ− decay properties and search for the B0 → μ+μ− decay in proton-proton collisions at √s = 13 TeV
Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2023) [Artículo de periódico]Measurements are presented of the B0 s → μ+μ− branching fraction and effective lifetime, as well as results of a search for the B0 → μ+μ− decay in proton-proton collisions at √s = 13 TeV at the LHC. The analysis is based ... -
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, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2023) [Artículo de periódico]The production of a top quark-antiquark pair in association with a W boson (t¯tW) is measured in proton-proton collisions at a center-of-mass energy of 13 TeV. The analyzed data was recorded by the CMS experiment at the ...