TY - JOUR
T1 - Measurement of the top quark mass with the ATLAS detector using tt¯ events with a high transverse momentum top quark
AU - Aad, G.
AU - Aakvaag, E.
AU - Abbott, B.
AU - Abdelhameed, S.
AU - Kabana, S.
AU - ATLAS Collaboration
N1 - Publisher Copyright:
© 2025 CERN for the benefit of the ATLAS Collaboration
PY - 2025/8
Y1 - 2025/8
N2 - The mass of the top quark is measured using top-quark-top-antiquark pair events with high transverse momentum top quarks. The dataset, collected with the ATLAS detector in proton–proton collisions at s=13 TeV delivered by the Large Hadron Collider, corresponds to an integrated luminosity of 140 fb−1. The analysis targets events in the lepton-plus-jets decay channel, with an electron or muon from a semi-leptonically decaying top quark and a hadronically decaying top quark that is sufficiently energetic to be reconstructed as a single large-radius jet. The mean of the invariant mass of the reconstructed large-radius jet provides the sensitivity to the top quark mass and is simultaneously fitted with two additional observables to reduce the impact of the systematic uncertainties. The top quark mass is measured to be mt=172.95±0.53 GeV, which is the most precise ATLAS measurement from a single channel.
AB - The mass of the top quark is measured using top-quark-top-antiquark pair events with high transverse momentum top quarks. The dataset, collected with the ATLAS detector in proton–proton collisions at s=13 TeV delivered by the Large Hadron Collider, corresponds to an integrated luminosity of 140 fb−1. The analysis targets events in the lepton-plus-jets decay channel, with an electron or muon from a semi-leptonically decaying top quark and a hadronically decaying top quark that is sufficiently energetic to be reconstructed as a single large-radius jet. The mean of the invariant mass of the reconstructed large-radius jet provides the sensitivity to the top quark mass and is simultaneously fitted with two additional observables to reduce the impact of the systematic uncertainties. The top quark mass is measured to be mt=172.95±0.53 GeV, which is the most precise ATLAS measurement from a single channel.
UR - https://www.scopus.com/pages/publications/105007570242
U2 - 10.1016/j.physletb.2025.139608
DO - 10.1016/j.physletb.2025.139608
M3 - Article
AN - SCOPUS:105007570242
SN - 0370-2693
VL - 867
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
M1 - 139608
ER -