Dmitrii Kobylianskii

Search for higgsinos in compressed mass spectra using low-momentum tracks in pp collisions at $$ \sqrt{s}=13 $$ TeV with the ATLAS detector

G. Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres

A bstract This paper presents two searches for the electroweak production of higgsinos with compressed mass spectra using 140 fb − 1 of $$ \sqrt{s}=13 $$ s = 13 TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron …

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Measurement of the top-quark mass using decays with a J/ψ meson at $$ \sqrt{s}=13 $$ TeV with the ATLAS detector

Erlend Aakvaag, Braden Keim Abbott, Sara Abdelhameed, Kira Abeling et autres

A bstract The top-quark mass is measured using top-quark decays producing an isolated lepton and J / ψ meson reconstructed in its μ + μ − decay mode. The data sample was recorded with the ATLAS detector in proton-proton collisions at a …

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Conditional Deep Generative Models for Simultaneous Simulation and Reconstruction of Entire Events

E. Dreyer, E. Gross, Dmitrii Kobylianskii, V. M. Mikuni et autres

We extend the Particle-flow Neural Assisted Simulations (Parnassus) framework of fast simulation and reconstruction to entire collider events. In particular, we use two generative Artificial Intelligence (genAI) tools, continuous normalizing flows and diffusion models, to create a set of reconstructed particle-flow objects …

Differential cross-section measurements of Higgs boson production in the H → τ+τ− decay channel in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

G. Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres

A bstract Differential measurements of Higgs boson production in the τ -lepton-pair decay channel are presented in the gluon fusion, vector-boson fusion (VBF), VH and $$ t\overline{t}H $$ t t ¯ H associated production modes, with particular focus on the VBF production …

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Electroweak, QCD and flavour physics studies with ATLAS data from Run 2 of the LHC

G. Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres

A summary of precision measurements sensitive to electroweak, QCD and quark-flavour effects performed by the ATLAS Collaboration at the Large Hadron Collider is reported. The measurements are predominantly performed on proton-proton ($pp$) collision data recorded at a centre-of-mass energy of 13 TeV …

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Measurement of $W^{\pm}$-boson differential cross-sections in proton-proton collisions with low pile-up data at $\sqrt{s} = 5.02$ TeV and $13$ TeV with the ATLAS detector

Erlend Aakvaag, B. Abbott, Sara Abdelhameed, Kira Abeling et autres

High precision single-differential $W^\pm $-boson production cross-sections as a function of electron or muon transverse momentum $p_\textrm{T}$ or their pseudorapity $\eta $, as well as double-differential cross-sections as functions of these variables, are measured in proton–proton collisions at centre-of-mass energies $\sqrt{s}=5.02$ TeV …

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Precise measurement of the $t\bar{t}$ production cross-section and lepton differential distributions in $eμ$ dilepton events from $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector

B. Abbott, Sara Abdelhameed, K. Abeling, Nils Julius Abicht et autres

The inclusive top quark pair ($t\bar{t}$) cross-section $\sigma _{t\bar{t}}$ has been measured in proton–proton collisions at $\sqrt{s}=13\,\text {TeV}$, using $140\,{\text {fb}^{-1}} $ of data collected by the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge $e\mu $ pair …

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Search for cascade decays of charged sleptons and sneutrinos in final states with three leptons and missing transverse momentum in pp collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector

Georges Aad, Yiming Abulaiti, T. Aoki, A. Haas et autres

A search for cascade decays of charged sleptons and sneutrinos using final states characterized by three leptons (electrons or muons) and missing transverse momentum is presented. The analysis is based on a dataset with 140 fb$^{-1}$ of proton-proton (pp) collisions at a …

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Measurements of $ZZ \rightarrow \ell\ellνν$ and $ZZjj \rightarrow \ell\ellννjj$ productions in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

G. Aad, Erlend Aakvaag, B. Abbott, Sara Abdelhameed et autres

This article presents measurements of $Z$ boson pair production cross-sections at a center-of-mass energy of $\sqrt{s} = 13$ TeV, using 140 fb$^{-1}$ of proton-proton data collected with the ATLAS detector at the Large Hadron Collider. The analysis includes both inclusive $ZZ$ production …

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Expected Tracking Performance of the ATLAS Inner Tracker at the High-Luminosity LHC

B. Abbott, Sara Abdelhameed, K. Abeling, Nils Julius Abicht et autres

Following the discovery of the Higgs boson, the precise measurement of its properties and their consistency with Standard Model (SM) predictions remains a central goal of the physics program at the Large Hadron Collider (LHC). While current measurements align with the SM …

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Search for R -parity violating supersymmetric decays of the top squark to a b -jet and a lepton in s = 13 TeV p p collisions with the ATLAS detector

G. Aad, E. Aakvaag, B. Abbott, Sara Abdelhameed et autres

A search is presented for direct pair production of the stop, the supersymmetric partner of the top quark, in a decay through an R -parity violating coupling to a charged lepton and a b -quark. The dataset corresponds to an integrated luminosity …

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Search for a resonance decaying into a scalar particle and a Higgs boson in the final state with two bottom quarks and two photons in proton–proton collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

G. Aad, Erlend Aakvaag, B. Abbott, K. Abeling et autres

A bstract A search for the resonant production of a heavy scalar X decaying into a Higgs boson and a new lighter scalar S , through the process X → S (→ $$ b\overline{b} $$ b b ¯ ) H (→ γγ …

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