ATLAS Collaboration: Muon reconstruction and identification efficiency in ATLAS using the full Run 2 $pp$ collision data set at $\sqrt{s}=13$ TeV. European Physical Journal C 81, S. 578 (2021)

ATLAS Collaboration: Exclusive dimuon production in ultraperipheral Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV with ATLAS. Physical Review C 104, S. 024906 (2021)

ATLAS Collaboration: Search for dark matter in association with an energetic photon in pp collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector. Journal of High Energy Physics 02, S. 226 (2021)

ATLAS Collaboration: Search for trilepton resonances from chargino and neutralino pair production in $\sqrt{s}$ = 13 TeV $pp$ collisions with the ATLAS detector. Physical Review D 103, S. 112003 (2021)

ATLAS Collaboration: Search for dark matter produced in association with a single top quark in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector. European Physical Journal C 81, S. 860 (2021)

ATLAS Collaboration: Search for a heavy Higgs boson decaying into a $Z$ boson and another heavy Higgs boson in the $\ell\ell bb$ and $\ell\ell WW$ final states in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector. European Physical Journal C 81, S. 396 (2021)

ATLAS Collaboration: Search for displaced leptons in $\sqrt{s} = 13$ TeV $pp$ collisions with the ATLAS detector. Physical Review Letters 127, S. 051802 (2021)

ATLAS Collaboration: Measurements of Higgs Bosons Decaying to Bottom Quarks from Vector Boson Fusion Production with the ATLAS Experiment at $\sqrt{s}=$ 13 TeV. European Physical Journal C 81, S. 537 (2021)

ATLAS Collaboration: Search for squarks and gluinos in final states with jets and missing transverse momentum using 139 fb$^{-1}$ of $\sqrt{s}$ =13 TeV $pp$ collision data with the ATLAS detector. Journal of High Energy Physics 02, S. 143 (2021)

ATLAS Collaboration: Search for Higgs boson production in association with a high-energy photon via vector-boson fusion with decay into bottom quark pairs at $\sqrt{s}$=13 TeV with the ATLAS detector. Journal of High Energy Physics 03, S. 268 (2021)

ATLAS Collaboration: Search for dark matter produced in association with a dark Higgs boson decaying into $W^\pm W^\mp$ or $ZZ$ in fully hadronic final states from $\sqrt{s}=13$ TeV $pp$ collisions recorded with the ATLAS detector. Physical Review Letters 126, S. 121802 (2021)

ATLAS Collaboration: Observation of photon-induced $W^+W^-$ production in $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector. Physics Letters B 816, S. 136190 (2021)

ATLAS Collaboration: Charged-lepton-flavour violation at the LHC: a search for $Z\to eτ/μτ$ decays with the ATLAS detector. Nature Physics 17, S. 819 (2021)

ATLAS Collaboration: Search for pair production of scalar leptoquarks decaying into first- or second-generation leptons and top quarks in proton-proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector. European Physical Journal C 81, S. 313 (2021)

ATLAS Collaboration: Search for phenomena beyond the Standard Model in events with large $b$-jet multiplicity using the ATLAS detector at the LHC. European Physical Journal C 81, S. 11 (2021)

ATLAS Collaboration: Search for heavy resonances decaying into a pair of $Z$ bosons in the $\ell^+\ell^-\ell'^+\ell'^-$ and $\ell^+\ell^-ν\barν$ final states using 139 fb$^{-1}$ of proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector. European Physical Journal C 81, S. 332 (2021)

ATLAS Collaboration: Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton--proton collisions. European Physical Journal C 81, S. 334 (2021)

ATLAS Collaboration: Medium-induced modification of $Z$-tagged charged particle yields in Pb+Pb collisions at 5.02 TeV with the ATLAS detector. Physical Review Letters 126, S. 072301 (2021)

ATLAS Collaboration: Search for type-III seesaw heavy leptons in dilepton final states in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector. European Physical Journal C 81, S. 218 (2021)

ATLAS Collaboration: Measurement of light-by-light scattering and search for axion-like particles with 2.2 nb$^{-1}$ of Pb+Pb data with the ATLAS detector. Journal of High Energy Physics 03, S. 243 (2021)