A. Apresyan

The effect of radiation damage on the light yield and uniformity of candidate plastic scintillator tiles for the CMS hadron calorimeter upgrade

Albert Gevorgyan, A. Petrosyan, A. Tumasyan, M. Van De Klundert et autres

Abstract A study has been performed to understand the effects of radiation damage on various plastic scintillator tiles considered for a possible upgrade of the hadron calorimeter of the CMS detector. Measurements were made with unirradiated tiles and with tiles that had …

am, be, br, cz, us, ge, hu, in, kr, lt, tr (code pays fourni par la source)

Search for a scalar or pseudoscalar dilepton resonance produced in association with a massive vector boson or top quark-antiquark pair in multilepton events at s=13 TeV

A. Tumasyan, W. Adam, J. W. Andrejkovic, T. Bergauer et autres

A search for beyond the standard model spin-0 bosons, ϕ , that decay into pairs of electrons, muons, or tau leptons is presented. The search targets the associated production of such bosons with a W or Z gauge boson, or a top …

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

Observation of the ϒ(3S) Meson and Suppression of ϒ States in Pb-Pb Collisions at sNN=5.02 TeV

A. Tumasyan, W. Adam, J. W. Andrejkovic, T. Bergauer et autres

The production of ϒ(2S) and ϒ(3S) mesons in lead-lead (Pb-Pb) and proton-proton (pp) collisions is studied in their dimuon decay channel using the CMS detector at the LHC. The ϒ(3S) meson is observed for the first time in Pb-Pb collisions, with a …

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

Search for Narrow Trijet Resonances in Proton-Proton Collisions at s=13 TeV

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

The first search for singly produced narrow resonances decaying to three well-separated hadronic jets is presented. The search uses proton-proton collision data corresponding to an integrated luminosity of 138 fb^{-1} at sqrt[s]=13 TeV, collected at the CERN LHC. No significant deviations from …

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

Search for long-lived heavy neutrinos in the decays of B mesons produced in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV

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

A bstract A search for long-lived heavy neutrinos (N) in the decays of B mesons produced in proton-proton collisions at $$ \sqrt{s} $$ s = 13 TeV is presented. The data sample corresponds to an integrated luminosity of 41.6 fb − 1 …

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

Search for long-lived particles decaying to final states with a pair of muons in proton-proton collisions at $$ \sqrt{s} $$ = 13.6 TeV

null null, A. Hayrapetyan, A. Tumasyan, W. Adam et autres

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

Search for supersymmetry in final states with a single electron or muon using angular correlations and heavy-object identification in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV

W. Adam, Janik Walter Andrejkovic, T. Bergauer, S. Chatterjee et autres

Abstract A search for supersymmetry is presented in events with a single charged lepton, electron or muon, and multiple hadronic jets. The data correspond to an integrated luminosity of 138 fb−1 of proton-proton collisions at a center-of-mass energy of 13 TeV, recorded …

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

First measurement of the top quark pair production cross section in proton-proton collisions at $$ \sqrt{s} $$ = 13.6 TeV

A. Tumasyan, W. Adam, Janik Walter Andrejkovic, T. Bergauer et autres

Abstract The first measurement of the top quark pair ( $$ \textrm{t}\overline{\textrm{t}} $$ t t ¯ ) production cross section in proton-proton collisions at $$ \sqrt{s} $$ s = 13.6 TeV is presented. Data recorded with the CMS detector at the CERN …

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

Search for the exotic decay of the Higgs boson into two light pseudoscalars with four photons in the final state in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV

A. Tumasyan, W. Adam, Janik Walter Andrejkovic, T. Bergauer et autres

Abstract A search for the exotic decay of the Higgs boson to a pair of light pseudoscalars, each of which subsequently decays into a pair of photons, is presented. The search uses data from proton-proton collisions at $$ \sqrt{s} $$ s = …

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

Measurement of the mass dependence of the transverse momentum of lepton pairs in Drell–Yan production in proton–proton collisions at $$\sqrt{s} = 13\,\text {Te\hspace{-.08em}V} $$

A. Tumasyan, W. Adam, J. W. Andrejkovic, T. Bergauer et autres

Abstract The double differential cross sections of the Drell–Yan lepton pair ( $$\ell ^+\ell ^-$$ ℓ + ℓ - , dielectron or dimuon) production are measured as functions of the invariant mass $$m_{\ell \ell }$$ m ℓ ℓ , transverse momentum $$p_{\textrm{T}} …

am, at, be, Égypte, kr, br (code pays fourni par la source)

Searches for additional Higgs bosons and for vector leptoquarks in ττ final states in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV

A. Tumasyan, W. Adam, Janik Walter Andrejkovic, T. Bergauer et autres

Abstract Three searches are presented for signatures of physics beyond the standard model (SM) in ττ final states in proton-proton collisions at the LHC, using a data sample collected with the CMS detector at $$ \sqrt{s} $$ s = 13 TeV, corresponding …

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

Measurement of the top quark pole mass using $$ \textrm{t}\overline{\textrm{t}} $$+jet events in the dilepton final state in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV

A. Tumasyan, W. Adam, Janik Walter Andrejkovic, T. Bergauer et autres

Abstract A measurement of the top quark pole mass $$ {m}_{\textrm{t}}^{\textrm{pole}} $$ m t pole in events where a top quark-antiquark pair ( $$ \textrm{t}\overline{\textrm{t}} $$ t t ¯ ) is produced in association with at least one additional jet ( $$ …

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