
Sten Åstrand
Doctoral student

My research is focused on accelerated and heterogeneous computing within the ATLAS collaboration, in preparation for the coming high-luminosity run of the LHC.
Publications
Displaying of publications. Sorted by year, then title.
Measurement of top-quark pair production in association with charm quarks in proton–proton collisions at s=13 TeV with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2025) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 860
Journal articleCombination of searches for singly and doubly charged Higgs bosons produced via vector-boson fusion in proton–proton collisions at s=13 TeV with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2025) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 860
Journal articleConstraints on simplified dark matter models involving an s-channel mediator with the ATLAS detector in pp collisions at s=13 TeV
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) European Physical Journal C, 84
Journal articleATLAS searches for additional scalars and exotic Higgs boson decays with the LHC Run 2 dataset
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physics Reports, 1116 p.184-260
Journal articleMeasurements of Lund subjet multiplicities in 13 TeV proton-proton collisions with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 859
Journal articlePrecise test of lepton flavour universality in W-boson decays into muons and electrons in pp collisions at s=13TeV with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) European Physical Journal C, 84
Journal articleFiducial and differential cross-section measurements of electroweak Wγjj production in pp collisions at s=13 TeV with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) European Physical Journal C, 84
Journal articleSearch for Light Long-Lived Particles in Formula Presented Collisions at Formula Presented Using Displaced Vertices in the ATLAS Inner Detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review Letters, 133
Journal articleObservation of tt¯ production in the lepton+jets and dilepton channels in p+Pb collisions at sNN = 8.16 TeV with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleMeasurements of jet cross-section ratios in 13 TeV proton-proton collisions with ATLAS
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review D, 110
Journal articleSearch for -parity violating supersymmetric decays of the top squark to a -jet and a lepton in √ =13 TeV collisions with the ATLAS detector
G Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review D, 110
Journal articleSearch for neutral long-lived particles that decay into displaced jets in the ATLAS calorimeter in association with leptons or jets using pp collisions at s = 13 TeV
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleMeasurement of single top-quark production in association with a Formula Presented boson in Formula Presented collisions at Formula Presented with the ATLAS detector
G Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review D, 110
Journal articleSearch for decays of the Higgs boson into a pair of pseudoscalar particles decaying into Formula Presented using Formula Presented collisions at Formula Presented with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review D, 110
Journal articleSearch for heavy right-handed Majorana neutrinos in the decay of top quarks produced in proton-proton collisions at (Formula Presented) with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review D, 110
Journal articleDisentangling Sources of Momentum Fluctuations in (Formula presented) and (Formula presented) Collisions with the ATLAS Detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review Letters, 133
Journal articleJet radius dependence of dijet momentum balance and suppression in Formula Presented collisions at 5.02 TeV with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review C, 110
Journal articleSearch for charged-lepton-flavor violating Formula Presented interactions in top-quark production and decay in Formula Presented collisions at Formula Presented with the ATLAS detector at the LHC
G Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review D, 110
Journal articleSearch for non-resonant Higgs boson pair production in final states with leptons, taus, and photons in pp collisions at s = 13 TeV with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleSearch for low-mass resonances decaying into two jets and produced in association with a photon or a jet at Formula Presented with the ATLAS detector
G Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review D, 110
Journal articleSearch for flavour-changing neutral-current couplings between the top quark and the Higgs boson in multi-lepton final states in 13 TeV pp collisions with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) European Physical Journal C, 84
Journal articleSearch for pair production of boosted Higgs bosons via vector-boson fusion in the bb¯bb¯ final state using pp collisions at s=13TeV with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 858
Journal articleCombination of Searches for Higgs Boson Pair Production in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review Letters, 133
Journal articleStudies of the Energy Dependence of Diboson Polarization Fractions and the Radiation-Amplitude-Zero Effect in WZ Production with the ATLAS Detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review Letters, 133
Journal articleSearch for Nearly Mass-Degenerate Higgsinos Using Low-Momentum Mildly Displaced Tracks in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review Letters, 132
Journal articleSearches for exclusive Higgs boson decays into D⁎γ and Z boson decays into D0γ and Ks0γ in pp collisions at s=13TeV with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 855
Journal articleCombination of searches for Higgs boson decays into a photon and a massless dark photon using pp collisions at s= 13 TeV with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleAccuracy versus precision in boosted top tagging with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Journal of Instrumentation, 19
Journal articleDifferential cross-sections for events with missing transverse momentum and jets measured with the ATLAS detector in 13 TeV proton-proton collisions
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleCalibration of a soft secondary vertex tagger using proton-proton collisions at Formula Presented with the ATLAS detector
G Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Physical Review D, 110
Journal articleSensor response and radiation damage effects for 3D pixels in the ATLAS IBL Detector
G. Aad, Torsten Åkesson, Sten Åstrand, Caterina Doglioni, Alexander Ekman, et al.
(2024) Journal of Instrumentation, 19
Journal articleMeasurements of the production cross-section for a Z boson in association with b- or c-jets in proton–proton collisions at s=13 TeV with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) European Physical Journal C, 84
Journal articleSearch for pair-produced vectorlike quarks coupling to light quarks in the lepton plus jets final state using 13 TeV pp collisions with the ATLAS detector
G. Aad, T.P.A. Åkesson, Sten Åstrand, C. Doglioni, Alexander Ekman, et al.
(2024) Physical Review D, 110
Journal articleSearch for a resonance decaying into a scalar particle and a Higgs boson in final states with leptons and two photons in proton-proton collisions at s = 13 TeV with the ATLAS detector
G. Aad, T.P.A. Åkesson, K.S.V. Astrand, C. Doglioni, P.A. Ekman, et al.
(2024) Journal of High Energy Physics, 2024
Journal article