Livia Soffi

Search for a Higgs boson produced in association with a charm quark and decaying to a W boson pair in proton-proton collisions at $$ \sqrt{s}=13 $$ TeV

A. Hayrapetyan, Vladimir Makarenko, A. Tumasyan, Wolfgang Adam et autres

A bstract This paper presents a search for a Higgs boson produced in association with a charm quark (cH) which allows to probe the Higgs-charm Yukawa coupling strength modifier κ c . Higgs boson decays to a pair of W bosons are …

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

Search for the nonresonant and resonant production of a Higgs boson in association with an additional scalar boson in the γγττ final state in proton-proton collisions at $$ \sqrt{s}=13 $$ TeV

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

A bstract The results of a search for the production of two scalar bosons in final states with two photons and two tau leptons are presented. The search considers both nonresonant production of a Higgs boson pair, HH, and resonant production via …

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

Model-independent measurement of the Higgs boson associated production with two jets and decaying to a pair of W bosons in proton-proton collisions at $$ \sqrt{s}=13 $$ TeV

Aram Hayrapetyan, Vladimir Makarenko, A. Tumasyan, W. Adam et autres

A bstract A model-independent measurement of the differential production cross section of the Higgs boson decaying into a pair of W bosons, with a final state including two jets produced in association, is presented. In the analysis, events are selected in which …

am, at, us, be, cn, 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 charged-lepton flavour violation in top quark interactions with an up-type quark, a muon, and a $τ$ lepton in proton-proton collisions at $\sqrt{s}$ = 13 TeV

A. Tumasyan, Janik Walter Andrejkovic, L. Benato, Thomas Bergauer et autres

A search for charged-lepton flavour violation (CLFV) in top quark (t) production and decay is presented. The search uses proton-proton collision data corresponding to 138 fb$^{−1}$ collected with the CMS experiment at $\sqrt{s}={13}$ TeV. The signal consists of the production of a …

de (code pays fourni par la source)

Search for charged lepton flavor violating Z and Z' boson decays in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Aram Hayrapetyan, Vladimir Makarenko, A. Tumasyan, W. Adam et autres

A search for flavor violating decays of the Z boson to charged leptons is performed using data from proton-proton collisions at $\sqrt{s}$ = 13 TeV collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 138 fb$^{-1}$. Each …

de (code pays fourni par la source)

Search for heavy H$γ$ and Z$γ$ resonances with a bottom quark-antiquark pair in the final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV

В. Макаренко, A. Tumasyan, W. Adam, Janik Walter Andrejkovic et autres

A search for heavy resonances decaying into a Higgs boson (H) or a Z boson and a photon ($γ$), with the H or Z bosons decaying to a bottom quark-antiquark pair ($\mathrm{b\bar{b}}$) is presented. The analysis is performed using proton-proton collision data …

de (code pays fourni par la source)

New ideas for measurements and searches at the HL-LHC

Livia Soffi

The High-Luminosity Large Hadron Collider (HL-LHC) will operate at unprecedented luminosity, with substantial data boosts enhancing the search for new physics and precision measurements. This paper explores advancements in detector technology, novel search strategies, and cutting-edge analysis techniques aimed at maximizing the …

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Measurement of the production cross section of a Higgs boson with large transverse momentum in its decays to a pair of τ leptons in proton-proton collisions at s=13TeV

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

A measurement of the production cross section of a Higgs boson with transverse momentum greater than 250 GeV is presented where the Higgs boson decays to a pair of τ leptons. It is based on proton-proton collision data collected by the CMS …

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

Observation of the J/ψ→μ+μ−μ+μ− decay in proton-proton collisions at s=13 TeV

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

The J/ψ→μ+μ−μ+μ− decay has been observed with a statistical significance in excess of five standard deviations. The analysis is based on an event sample of proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the CMS experiment in 2018 and …

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

Luminosity determination using Z boson production at the CMS experiment

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

Abstract The measurement of Z boson production is presented as a method to determine the integrated luminosity of CMS data sets. The analysis uses proton–proton collision data, recorded by the CMS experiment at the CERN LHC in 2017 at a center-of-mass energy …

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

Search for dark QCD with emerging jets in proton-proton collisions at $ \sqrt{s} $ = 13 TeV

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

A search for ``emerging jets'' produced in proton-proton collisions at a center-of-mass energy of 13 TeV is performed using data collected by the CMS experiment corresponding to an integrated luminosity of 138 fb$^{-1}$. This search examines a hypothetical dark quantum chromodynamics (QCD) …