Navegação Ciências Exatas e da Terra por Autor "CMS Collaboration"
Resultados 1-20 de 438
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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) [Artigo 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 ... -
An embedding technique to determine ττ backgrounds in proton-proton collision data
Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2019) [Artigo de periódico]An embedding technique is presented to estimate standard model ττ backgrounds from data with minimal simulation input. In the data, the muons are removed from reconstructed μμ events and replaced with simulated tau leptons ... -
Angular analysis of the decay B+ → K∗(892)+μ+μ− in proton-proton collisions at √s= 8 TeV
Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2021) [Artigo de periódico]Angular distributions of the decay B+ → K∗(892)+μ+μ− are studied using events collected with the CMS detector in s√ = 8 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 20.0 fb−1. The ... -
Angular analysis of the decay B+ → K+ μ+ μ− in proton-proton collisions at √s = 8 TeV
Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2018) [Artigo de periódico]The angular distribution of the flavor-changing neutral current decay B+ → K+ μ+ μ− is studied in proton-proton collisions at a center-of-mass energy of 8 TeV. The analysis is based on data collected with 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) [Artigo 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 separation in nearly back-to-back jet topologies in inclusive 2- and 3-jet events in pp collisions at √s=13 TeV
Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2019) [Artigo de periódico]A measurement for inclusive 2- and 3-jet events of the azimuthal correlation between the two jets with the largest transverse momenta, Δϕ12, is presented. The measurement considers events where the two leading jets are ... -
Bose-Einstein correlations of charged hadrons in proton-proton collisions at √s = 13 TeV
Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2020) [Artigo de periódico]Bose-Einstein correlations of charged hadrons are measured over a broad multiplicity range, from a few particles up to about 250 reconstructed charged hadrons in proton-proton collisions at s√ = 13 TeV. The results are ... -
Calibration of the CMS hadron calorimeters using proton-proton collision data at √s = 13 TeV
Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2020) [Artigo de periódico]Methods are presented for calibrating the hadron calorimeter system of the CMS detector at the LHC. The hadron calorimeters of the CMS experiment are sampling calorimeters of brass and scintillator, and are in the form of ... -
Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions at √sNN=5.02 TeV
Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2019) [Artigo de periódico]The almost hermetic coverage of the CMS detector is used to measure the distribution of transverse energy, ET, over 13.2 units of pseudorapidity, η, for pPb collisions at a center-of-mass energy per nucleon pair of ... -
Charged-particle angular correlations in XeXe collisions at √sNN=5.44 TeV
Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2019) [Artigo de periódico]Azimuthal correlations of charged particles in xenon-xenon collisions at a center-of-mass energy per nucleon pair of √sNN=5.44 TeV are studied. The data were collected by the CMS experiment at the LHC with a total integrated ... -
Charged-particle nuclear modification factors in XeXe collisions at √sNN = 5.02 TeV
Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2018) [Artigo de periódico]The di erential yields of charged particles having pseudorapidity within j j < 1 are measured using xenon-xenon (XeXe) collisions at p sNN = 5:44TeV. The data, corresponding to an integrated luminosity of 3.42 b1, were ... -
CMS PYTHIA 8 colour reconnection tunes based on underlying-event data
Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2023) [Artigo 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 ... -
Combination of CMS searches for heavy resonances decaying to pairs of bosons or leptons
Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2019) [Artigo de periódico]A statistical combination of searches for heavy resonances decaying to pairs of bosons or leptons is presented. The data correspond to an integrated luminosity of 35.9 fb−1 collected during 2016 by the CMS experiment at ... -
Combination of inclusive and differential tt¯ charge asymmetry measurements using ATLAS and CMS data at √s = 7 and 8TeV
Aaboud, M.; Silveira, Gustavo Gil da; ATLAS Collaboration; CMS Collaboration (2018) [Artigo de periódico]Abstract: This paper presents combinations of inclusive and di erential measurements of the charge asymmetry (AC) in top quark pair (t t) events with a lepton+jets signature by the ATLAS and CMS Collaborations, using data ... -
Combination of inclusive top-quark pair production cross-section measurements using ATLAS and CMS data at √s = 7 and 8 TeV
Aad, Georges; Silveira, Gustavo Gil da; Bernardes, César Augusto; ATLAS Collaboration; CMS Collaboration (2023) [Artigo de periódico]A combination of measurements of the inclusive top-quark pair production cross-section performed by ATLAS and CMS in proton–proton collisions at centre-of-mass energies of 7 and 8 TeV at the LHC is presented. The cross-sections ... -
Combination of Searches for Higgs Boson Pair Production in Proton-Proton Collisions at √s=13 TeV
Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2019) [Artigo de periódico]resumo não disponível -
Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at s√ = 8 TeV
Aad, Georges; Silveira, Gustavo Gil da; ATLAS Collaboration; CMS Collaboration (2020) [Artigo de periódico]The combination of measurements of the W boson polarization in top quark decays performed by the ATLAS and CMS collaborations is presented. The measurements are based on proton-proton collision data produced at the LHC at ... -
Combinations of single-top-quark production cross-section measurements and |fLV Vtb| determinations at √s= 7 and 8 TeV with the ATLAS and CMS experiments
Aaboud, M.; Silveira, Gustavo Gil da; ATLAS Collaboration; CMS Collaboration (2019) [Artigo de periódico]This paper presents the combinations of single-top-quark production cross-section measurements by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at √s = 7 and 8 TeV corresponding to integrated ... -
Combined measurements of Higgs boson couplings in proton–proton collisions at √ s = 13 TeV
Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2019) [Artigo de periódico]Combined measurements of the production and decay rates of the Higgs boson, as well as its couplings to vector bosons and fermions, are presented. The analysis uses the LHC proton–proton collision data set recorded with ... -
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) [Artigo 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 ...