N. Warrack

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…

Search for decays of the Higgs boson into scalar particles decaying into four or six $b$ -quarks using $pp$ collisions at $s = 13 TeV$ with the ATLAS detector

ATLAS Collaboration

A search for exotic decays of the Higgs boson $H$ into new scalar or pseudoscalar particles that subsequently decay into $b$ -quarks is presented. The search considers $Z H$ producti…

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…

hep-ex2025★ 3 cited

Transforming jet flavour tagging at ATLAS

ATLAS Collaboration

Jet flavour tagging enables the identification of jets originating from heavy-flavour quarks in proton-proton collisions at the Large Hadron Collider, playing a critical role in it…

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…

Measurements of $W^{+} W^{-}$ production cross-sections in $pp$ collisions at $s = 13$ TeV with the ATLAS detector

ATLAS Collaboration

Measurements of $W^{+} W^{-} \to e^{\pm} ν μ^{\mp} ν$ production cross-sections are presented, providing a test of the predictions of perturbative quantum chromodynamics and the elect…

hep-ex2025★ 9 cited

Search for new physics in final states with semi-visible jets or anomalous signatures using the ATLAS detector

ATLAS Collaboration

A search is presented for hadronic signatures of beyond the Standard Model (BSM) physics, with an emphasis on signatures of a strongly-coupled hidden dark sector accessed via reson…

Constraining off-shell Higgs boson production and the Higgs boson total width using $W W \to ℓ ν ℓ ν$ final states with the ATLAS detector

ATLAS Collaboration

A measurement of off-shell Higgs boson production is performed in the $H^{*} \to W W$ channel. The measurement uses a proton-proton collision dataset with an integrated lumi…

Measurements of Higgs boson production via gluon-gluon fusion and vector-boson fusion using $H \to W W^{*} \to ℓ ν ℓ ν$ decays in $pp$ collisions with the ATLAS detector and their effective field theory interpretations

ATLAS Collaboration

Higgs boson production cross-sections via gluon-gluon fusion and vector-boson fusion in proton-proton collisions are measured in the $H \to W W^{*} \to ℓ ν ℓ ν$ d…

Measurement of high-mass $t t ˉ ℓ^{+} ℓ^{-}$ production and lepton flavour universality-inspired effective field theory interpretations at $s = 13$ TeV with the ATLAS detector

ATLAS Collaboration

Measurements of $t t ˉ ℓ^{+} ℓ^{-}$ production in the region of high dilepton invariant mass with effective field theory (EFT) interpretations are presented. They are perfor…

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…

Search for events with one displaced vertex from long-lived neutral particles decaying into hadronic jets in the ATLAS muon spectrometer in $pp$ collisions at $s = 13$ TeV

ATLAS Collaboration

A search for events with one displaced vertex from long-lived particles using data collected by the ATLAS detector at the Large Hadron Collider is presented, using 140 fb $^{- 1}$ of…

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…

A measurement of the high-mass $τ τ ˉ$ production cross-section at $s = 13$ TeV with the ATLAS detector and constraints on new particles and couplings

The ATLAS Collaboration

The production cross-section of high-mass $τ$ -lepton pairs is measured as a function of the dilepton visible invariant mass, using 140 fb $^{- 1}$ of $s = 13$ TeV proton-proton…

Measurements of the production cross-sections of a Higgs boson in association with a vector boson and decaying into $W W^{*}$ with the ATLAS detector at $s = 13$ TeV

ATLAS Collaboration

Measurements of the total and differential Higgs boson production cross-sections, via $W H$ and $Z H$ associated production using $H \to W W^{*} \to ℓ ν ℓ ν$ and $H\r…

Electroweak diboson production in association with a high-mass dijet system in semileptonic final states from $pp$ collisions at $s = 13$ TeV with the ATLAS detector

ATLAS Collaboration

This paper reports the observation of electroweak diboson ( $W W / W Z / Z Z$ ) production in association with a high-mass dijet system, in which final states with one boson decaying lepton…

Search for a new pseudoscalar decaying into a pair of bottom and antibottom quarks in top-associated production in $s$ =13 TeV proton-proton collisions with the ATLAS detector

ATLAS Collaboration

A search for a pseudoscalar $a$ produced in association with a top-quark pair, or in association with a single top quark plus a $W$ boson, with the pseudoscalar decaying into $b$ -q…

hep-ex2025★ 3 cited

Searches for direct slepton production in the compressed-mass corridor in $s = 13$ TeV $pp$ collisions with the ATLAS detector

ATLAS Collaboration

This paper presents searches for the direct pair production of charged light-flavour sleptons, each decaying into a stable neutralino and an associated Standard Model lepton. The a…

hep-ex2025★ 9 cited

Search for heavy neutral leptons in decays of W bosons using leptonic and semi-leptonic displaced vertices in $s = 13$ TeV $pp$ collisions with the ATLAS detector

ATLAS Collaboration

A search is performed for long-lived heavy neutral leptons (HNLs), produced through the decay of a $W$ boson along with a muon or electron. Two channels are explored: a leptonic ch…