Frank Jensen

Measurement of the dineutrino system kinematic variables in dileptonic top quark pair production in proton-proton collisions at $$ \sqrt{s}=13 $$ TeV

Vladimir Chekhovsky, Aram Hayrapetyan, Vladimir Makarenko, A. Tumasyan et autres

A bstract Differential top quark pair production cross sections are measured in the dilepton final states e + e − , μ + μ − , and e ± μ ∓ , as a function of kinematic variables of the two-neutrino system: …

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

Combined effective field theory interpretation of Higgs boson, electroweak vector boson, top quark, and multijet measurements

V. Chekhovsky, A. Hayrapetyan, Vladimir Makarenko, A. Tumasyan et autres

Abstract Constraints on Wilson coefficients (WCs) corresponding to dimension-6 operators of the standard model effective field theory (SMEFT) are determined from a simultaneous fit to seven sets of CMS measurements probing Higgs boson, electroweak vector boson, top quark, and multijet production. Measurements …

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

Measurements of the inclusive W and Z boson production cross sections and their ratios in proton-proton collisions at $$\sqrt{s}=13.6$$ TeV

V. Chekhovsky, Aram Hayrapetyan, Vladimir Makarenko, A. Tumasyan et autres

A bstract Measurements are presented of the W and Z boson production cross sections in proton-proton collisions at a center-of-mass energy of 13.6 TeV. Data collected in 2022 and corresponding to an integrated luminosity of 5.01 fb − 1 with one or …

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

Development of systematic uncertainty-aware neural network trainings for binned-likelihood analyses at the LHC

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

Abstract We propose a neural network training method capable of accounting for the effects of systematic variations of the data model in the training process and describe its extension towards neural network multiclass classification. The procedure is evaluated on the realistic case …

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

Search for top squarks in final states with many light-flavor jets and 0, 1, or 2 charged leptons in proton-proton collisions at $$\sqrt{s}=13$$ TeV

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

A bstract Several new physics models including versions of supersymmetry (SUSY) characterized by R -parity violation (RPV) or with additional hidden sectors predict the production of events with top quarks, low missing transverse momentum, and many additional quarks or gluons. The results …

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

Measurement of the inclusive cross sections for W and Z boson production in proton-proton collisions at $ \sqrt{\textrm{s}} $ = 5.02 and 13 TeV

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

Measurements of fiducial and total inclusive cross sections for W and Z boson production are presented in proton-proton collisions at $\sqrt{s}$ = 5.02 and 13 TeV. Electron and muon decay modes ($ell$ = e or$\mu$) are studied in the data collected with …

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

Search for long-lived heavy neutral leptons with displaced vertices in proton-proton collisions at $ \sqrt{\mathrm{s}} $ =13 TeV

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

A search for heavy neutral leptons (HNLs), the right-handed Dirac or Majorana neutrinos, is performed in final states with three charged leptons (electrons or muons) using proton-proton collision data collected by the CMS experiment at $ \sqrt{s} $ = 13 TeV at …

Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state at $\sqrt{s}$ = 13 TeV

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

A search is presented for a heavy W' boson resonance decaying to a B or T vector-like quark and a t or a b quark, respectively. The analysis is performed using proton-proton collisions collected with the CMS detector at the LHC. The …

Search for high-mass resonances decaying to a jet and a Lorentz-boosted resonance in proton-proton collisions at $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$

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

A search is reported for high-mass hadronic resonances that decay to a parton and a Lorentz-boosted resonance, which in turn decays into a pair of partons. The search is based on data collected with the CMS detector at the LHC in proton-proton …