D. Kim

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

ATLAS Collaboration

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 A…

Search for signatures of electroweakinos with photons, jets, and large missing transverse momentum in $s = 13$ TeV pp collisions with the ATLAS detector

ATLAS Collaboration

A search for final states characterised by at least one isolated high transverse-momentum photon, jets and large missing transverse momentum is presented. Such a final state might…

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

ATLAS Collaboration

This paper presents two searches for the electroweak production of higgsinos with compressed mass spectra using 140 fb $^{- 1}$ of $s = 13$ TeV proton-proton collision data coll…

Measurement of the Higgs boson production in association with top quarks in multilepton final states in $pp$ collisions at $s = 13$ TeV with the ATLAS detector

Atlas Collaboration

A measurement of the associated production of a top-quark pair with the Higgs boson ( $t t ˉ H$ ) in multilepton final states is presented. The analysis is based on a data sample o…

A search for electroweak $t t ˉ W j$ production in multileptonic final states at $s = 13$ TeV with the ATLAS detector and bounds on effective field theory operators

ATLAS Collaboration

A search is presented for the electroweak production of a top quark pair in association with a $W$ boson and at least one additional jet, known as the ${t\bar{t}W\kern-0.2em j_{\ma…

Measurement of the top-quark Yukawa coupling from $t t$ production in the lepton+jets final state using $pp$ collisions at $s = 13$ TeV with the ATLAS detector

ATLAS Collaboration

The top-quark Yukawa coupling is extracted from the distribution of the top-quark pair ( $t t$ ) invariant mass in proton-proton collisions using 140 $f b^{- 1}$ of data a…

Observation of $W^{+} W^{-} γ$ production in $pp$ collisions at $s$ = 13 TeV with the ATLAS detector and constraints on anomalous quartic gauge-boson couplings

ATLAS Collaboration

This Letter reports the observation of $W^{+} W^{-} γ$ triboson production in 140 fb $^{- 1}$ of data collected by the ATLAS detector from proton--proton collisions at a centre-of-mass…

Search for Higgs bosons produced in association with a high-energy photon via vector-boson fusion and decaying to a pair of $b$ -quarks in the ATLAS detector

ATLAS Collaboration

A search for Standard Model Higgs bosons produced in association with a high-energy photon and decaying to $b b ˉ$ is performed using 133 fb $^{- 1}$ of $s = 13$ TeV $pp$ col…

Measurement of the $W$ -boson angular coefficients and transverse momentum in $pp$ collisions at $s =$ 13 TeV with the ATLAS detector

The ATLAS Collaboration

The angular distributions of Drell-Yan lepton pairs provide sensitive probes of the underlying dynamics of quantum chromodynamics (QCD) effects in vector-boson production. This pap…

Observation of structures in the $J / ψ + ψ (2 S)$ mass spectrum with the ATLAS detector

ATLAS Collaboration

A search for resonant structures in the $J / ψ + ψ$ (2S) mass spectrum is performed using proton--proton collision data at $s = 13$ TeV, corresponding to an integrated luminosity o…

nucl-ex2025★ 9 cited

Measurement of the azimuthal anisotropy of charged particles in $s_{NN} = 5.36$ TeV $^{16}$ O $+^{16}$ O and $^{20}$ Ne $+^{20}$ Ne collisions with the ATLAS detector

ATLAS Collaboration

This paper presents the first measurements of the azimuthal anisotropy coefficients $v_{n}$ , which quantify the $n^{th}$ -order Fourier modulation of charged-particle azimu…

nucl-ex2025★ 2 cited

Measurement of coherent exclusive $J / ψ \to μ^{+} μ^{-}$ production in ultraperipheral Pb+Pb collisions at $s_{NN} = 5.36$ TeV with the ATLAS detector

ATLAS Collaboration

The ATLAS experiment has performed a measurement of coherent exclusive $J / ψ \to μ^{+} μ^{-}$ production in ultraperipheral Pb+Pb collisions at $s_{NN} = 5.36$ TeV. The data…

Search for heavy neutral leptons in decays of W bosons produced in 13 TeV pp collisions using prompt signatures in the ATLAS detector

ATLAS Collaboration

The existence of right-handed neutrinos with Majorana masses below the electroweak scale could help address the origins of neutrino masses, the matter-antimatter asymmetry, and dar…

Search for Beyond the Standard Model physics with anomaly detection in multilepton final states in $pp$ collisions at $s = 13$ TeV with the ATLAS detector

ATLAS Collaboration

A model-agnostic search for Beyond the Standard Model physics is presented, targeting final states with at least four light leptons (electrons or muons). The search regions are sep…

Search for resonant leptoquark production via lepton-jet signatures in $pp$ collisions at $s = 13$ TeV and $s = 13.6$ TeV with the ATLAS detector

ATLAS Collaboration

This paper presents a search for physics beyond the Standard Model targeting a heavy resonance visible in the invariant mass of the lepton-jet system. The analysis focuses on final…

hep-ex2025★ 3 cited

Study of Higgs boson pair production in the $H H \to b b γ γ$ final state with 308 fb $^{- 1}$ of data collected at $s =$ 13 TeV and 13.6 TeV by the ATLAS experiment

ATLAS Collaboration

A search for Higgs boson pair production in the $b b ˉ γ γ$ final state is performed. The proton-proton collision dataset corresponds to an integrated luminosity of 308 fb$^{-1}…

Search for single production of vector-like quarks decaying into $W (ℓ ν) b$ in $pp$ collisions at $s = 13$ TeV with the ATLAS detector

ATLAS Collaboration

A search for single production of a vector-like quark $Q$ , which could be either a singlet $T$ , with charge $\frac{2}{3}$ , or a $Y$ from a $(T, B, Y)$ triplet, with charge $- \frac{4}{3}$ ,…

Measurements of differential cross-sections of $W bW b$ production in the dilepton channel in $pp$ collisions at $s$ = 13 TeV using the ATLAS detector

ATLAS Collaboration

At the Large Hadron Collider, the $W bW b$ final state is expected to be dominated by $t t ˉ$ production with a contribution from single-top processes. Differential cross-sections…

A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps

ATLAS Collaboration

A calibration of the ATLAS flavour-tagging algorithms using a new calibration procedure based on optimal transportation maps is presented. Simultaneous, continuous corrections to t…

The environmental impact, carbon emissions and sustainability of computing in the ATLAS experiment

ATLAS Collaboration

ATLAS, a general-purpose experiment at the Large Hadron Collider (LHC), makes use of a large internationally-distributed computing infrastructure, including over $1 0^{6}$ TB of manag…

nucl-ex2025

Measurement of substructure-dependent suppression of large-radius jets with charged particles in Pb+Pb collisions with ATLAS

ATLAS Collaboration

Measurements of jet substructure in Pb+Pb collisions provide key insights into the mechanism of jet quenching in the hot and dense QCD medium created in these collisions. This Lett…

nucl-ex2025

Characterization of nuclear breakup as a function of hard-scattering kinematics using dijets measured by ATLAS in $p$ +Pb collisions

ATLAS Collaboration

This Letter analyzes the sensitivity of event geometry estimators to the initial-state kinematics of hard scattering in proton-lead collisions. This analysis uses dijets as a proxy…

nucl-ex2025★ 11 cited

Evidence for the collective nature of radial flow in Pb+Pb collisions with the ATLAS detector

ATLAS Collaboration

Anisotropic flow and radial flow are two key probes of the expansion dynamics and properties of the quark-gluon plasma (QGP). While anisotropic flow has been extensively studied, r…