K. Márton

Measurement of event shapes in minimum-bias events from proton-proton collisions at s = 13 TeV

V. Chekhovsky, A. Hayrapetyan, В. Макаренко, A. Tumasyan et autres

A measurement of event-shape variables is presented, using a data sample produced in a special run with approximately one inelastic proton-proton collision per bunch crossing. The data were collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to …

am, at, us, be, in, br (code pays fourni par la source)

Search for γ H production and constraints on the Yukawa couplings of light quarks to the Higgs boson

V. Chekhovsky, A. Hayrapetyan, В. Макаренко, A. Tumasyan et autres

A search for γ H production is performed with data from the CMS experiment at the LHC corresponding to an integrated luminosity of 138 fb − 1 at a proton-proton center-of-mass collision energy of 13 TeV . The analysis focuses on the …

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Search for dark matter production in association with a single top quark in proton-proton collisions at $$\sqrt{{\varvec{s}}}=13$$ TeV

Vladimir Chekhovsky, A. Hayrapetyan, В. Макаренко, A. Tumasyan et autres

A bstract A search for the production of a single top quark in association with invisible particles is performed using proton-proton collision data collected with the CMS detector at the LHC at $$\sqrt{s}=13$$ TeV, corresponding to an integrated luminosity of 138 fb …

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Observation of Λ Hyperon Local Polarization in p -Pb Collisions at s NN = 8.16 TeV

Aram Hayrapetyan, A. Tumasyan, W. Adam, J. W. Andrejkovic et autres

The polarization of the Λ and Λ[over ¯] hyperons along the beam direction has been measured in proton-lead (p-Pb) collisions at a center-of-mass energy per nucleon pair of 8.16 TeV. The data were obtained with the CMS detector at the LHC and …

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Measurement of light-by-light scattering and the Breit-Wheeler process, and search for axion-like particles in ultraperipheral PbPb collisions at $$\sqrt{{s}_{\text{NN}}}$$ = 5.02 TeV

A. Hayrapetyan, A. Tumasyan, W. Adam, J. W. Andrejkovic et autres

A bstract Measurements of light-by-light scattering (LbL, γγ → γγ ) and the Breit-Wheeler process (BW, γγ → e + e − ) are reported in ultraperipheral PbPb collisions at a centre-of-mass energy per nucleon pair of 5.02 TeV. The data sample, …

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Probing Gluon Fluctuations in Nuclei with the First Energy-Dependent Measurement of Incoherent J/ψ Photoproduction in Ultraperipheral PbPb Collisions

V. Chekhovsky, A. Hayrapetyan, В. Макаренко, A. Tumasyan et autres

Incoherent J/ψ photoproduction in heavy ion ultraperipheral collisions (UPCs) provides a sensitive probe of localized, fluctuating gluonic structures within heavy nuclei. This Letter reports the first measurement of the photon-nucleon center-of-mass energy (W_{γN}) dependence of this process in PbPb UPCs at a …

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Measurement of the W boson decay branching fraction ratio B ( W → c q ) / B ( W → q q ¯ ′ ) in proton-proton collisions at s = 13 TeV

Aram Hayrapetyan, A. Tumasyan, W. Adam, Janik Walter Andrejkovic et autres

The most precise measurement to date of the boson hadronic decay branching fraction ratio is presented. The measurement is based on a sample of proton-proton collision data from the CERN LHC collected by the CMS experiment at a center-of-mass energy of 13 …

Evidence for Similar Collectivity of High Transverse-Momentum Particles in p -Pb and Pb-Pb Collisions

A. Hayrapetyan, В. Макаренко, A. Tumasyan, W. Adam et autres

Charged hadron elliptic anisotropies (v_{2}) are presented over a wide transverse momentum (p_{T}) range for proton-lead (pPb) and lead-lead (PbPb) collisions at nucleon-nucleon center-of-mass energies of 8.16 and 5.02 TeV, respectively. The data were recorded by the CMS experiment and correspond to …

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Search for heavy neutral resonances decaying to tau lepton pairs in proton-proton collisions at s = 13 TeV

Aram Hayrapetyan, A. Tumasyan, W. Adam, J. W. Andrejkovic et autres

A search for heavy neutral gauge bosons ( Z ′ ) decaying into a pair of tau leptons is performed in proton-proton collisions at s = 13 TeV at the CERN LHC. The data were collected with the CMS detector and correspond …

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Search for medium effects using jet axis decorrelation in inclusive jets from PbPb collisions at $$\sqrt{{s}_{\text{NN}}}$$ = 5.02 TeV

V. Chekhovsky, A. Hayrapetyan, В. Макаренко, A. Tumasyan et autres

A bstract The jet axis decorrelation in inclusive jets is studied using lead-lead (PbPb) collisions at a center-of-mass energy per nucleon pair of 5.02 TeV. The jet axis decorrelation is defined as the angular difference between two definitions of the jet axis. …

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Search for heavy neutral Higgs bosons A and H in the t t ¯ Z channel in proton-proton collisions at 13 TeV

A. Hayrapetyan, A. Tumasyan, W. Adam, Janik Walter Andrejkovic et autres

A direct search for new heavy neutral Higgs bosons and in the channel is presented, targeting the process with . For the first time, the channel with decays of the boson to muons or electrons in association with all-hadronic decays of the …

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Measurements of the Higgs boson production cross section in the four-lepton final state in proton-proton collisions at $$\sqrt{s}$$ = 13.6 TeV

Vladimir Chekhovsky, A. Hayrapetyan, В. Макаренко, A. Tumasyan et autres

A bstract The measurements of the Higgs boson (H) production cross sections performed by the CMS Collaboration in the four-lepton (4 ℓ, ℓ = e , μ) final state at a center-of-mass energy $$\sqrt{s}$$ = 13 . 6 TeV are presented. These …

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