ATLAS Collaboration: Search for exotic decays of the Higgs boson into long-lived particles in $pp$ collisions at $\sqrt{s} = 13$ TeV using displaced vertices in the ATLAS inner detector. Journal of High Energy Physics 11, p. 229 (2021)

ATLAS Collaboration: Measurement of the $t\bar{t}t\bar{t}$ production cross section in $pp$ collisions at $\sqrt{s}$=13 TeV with the ATLAS detector. Journal of High Energy Physics 11, p. 118 (2021)

ATLAS Collaboration: Measurements of sensor radiation damage in the ATLAS inner detector using leakage currents. Journal of Instrumentation 16, p. P08025 (2021)

ATLAS Collaboration: Search for R-parity violating supersymmetry in a final state containing leptons and many jets with the ATLAS experiment using $\sqrt{s} = 13$ TeV proton-proton collision data. European Physical Journal C 81, p. 1023 (2021)

ATLAS Collaboration: Configuration and performance of the ATLAS $b$-jet triggers in Run 2. European Physical Journal C 81, p. 1087 (2021)

ATLAS Collaboration: Search for chargino--neutralino pair production in final states with three leptons and missing transverse momentum in $\sqrt{s} = 13$ TeV $pp$ collisions with the ATLAS detector. European Physical Journal C 81, p. 1118 (2021)

ATLAS Collaboration: Search for new phenomena in final states with two leptons and one or no $b$-tagged jets at $\sqrt{s} = 13$ TeV using the ATLAS detector. Physical Review Letters 127, p. 141801 (2021)

ATLAS Collaboration: Search for lepton-flavor-violation in $Z$-boson decays with $τ$-leptons with the ATLAS detector. Physical Review Letters 127, p. 271801 (2021)

ATLAS Collaboration: Search for dark matter in events with missing transverse momentum and a Higgs boson decaying into two photons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector. Journal of High Energy Physics 10, p. 013 (2021)

ATLAS Collaboration: A search for the decays of stopped long-lived particles at $\sqrt{s}=13$ TeV with the ATLAS detector. Journal of High Energy Physics 07, p. 173 (2021)

ATLAS Collaboration: Measurements of the inclusive and differential production cross sections of a top-quark-antiquark pair in association with a $Z$ boson at $\sqrt{s} = 13$ TeV with the ATLAS detector. European Physical Journal C 81, p. 737 (2021)

ATLAS Collaboration: Search for supersymmetry in events with four or more charged leptons in $139\,\mbox{fb\(^{-1}\)}$ of $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector. Journal of High Energy Physics 07, p. 167 (2021)

ATLAS Collaboration: Measurements of $W^+W^-+\ge 1~$jet production cross-sections in $pp$ collisions at $\sqrt{s}=13~$TeV with the ATLAS detector. Journal of High Energy Physics 06, p. 003 (2021)

ATLAS Collaboration: Evidence for Higgs boson decays to a low-mass dilepton system and a photon in pp collisions at $\sqrt{s} =$ 13 TeV with the ATLAS detector. Physics Letters B 819, p. 136412 (2021)

ATLAS Collaboration: Search for bottom-squark pair production in $pp$ collision events at $\sqrt{s} = 13$ TeV with hadronically decaying $τ$-leptons, $b$-jets and missing transverse momentum using the ATLAS detector. Physical Review D 104, p. 032014 (2021)

ATLAS Collaboration: Search for charged Higgs bosons decaying into a top quark and a bottom quark at $\sqrt{s}$=13 TeV with the ATLAS detector. Journal of High Energy Physics 06, p. 145 (2021)

ATLAS Collaboration: Measurements of differential cross-sections in four-lepton events in 13 TeV proton-proton collisions with the ATLAS detector. Journal of High Energy Physics 07, p. 005 (2021)

ATLAS Collaboration: Performance of the ATLAS RPC detector and Level-1 muon barrel trigger at $\sqrt{s}=13$ TeV. Journal of Instrumentation 16, p. P07029 (2021)

ATLAS Collaboration: Search for resonances decaying into photon pairs in 139 fb$^{-1}$ of $pp$ collisions at $\sqrt{s} =$ 13 TeV with the ATLAS detector. Physics Letters B 822, p. 136651 (2021)

ATLAS Collaboration: Search for new phenomena in events with an energetic jet and missing transverse momentum in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector. Physical Review D 103, p. 112006 (2021)