Measurement of the top quark mass with the ATLAS detector using tt¯ events with a high transverse momentum top quark

ATLAS Collaboration

doi:10.1016/j.physletb.2025.139608

Measurement of the top quark mass with the ATLAS detector using tt¯ events with a high transverse momentum top quark

ATLAS Collaboration

Institute of Higher Research

Aix-Marseille Université and CNRS/IN2P3
University of Bergen
University of Oklahoma
New York University Abu Dhabi
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TU Dortmund University
United States Department of Energy
Southern Methodist University
Mohammed V University in Rabat
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AGH University of Krakow
SLAC National Accelerator Laboratory
University of Manchester
Northern Illinois University
Istanbul University
Rutherford Appleton Laboratory
University of California at Santa Cruz
The University of Chicago
Institute for High Energy Physics
Johannes Gutenberg University Mainz
Alexandru Ioan Cuza University of Iaşi
Royal Holloway University of London
Zhengzhou University
University of Rome Tor Vergata
University of Valencia
University of Hassan II Casablanca
Lund University
Stony Brook University
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University of Bonn
Bogazici University
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CSIC - Institute of Microelectronics of Barcelona
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West University of Timisoara
Sun Yat-Sen University
A. Alikhanian Yerevan Institute of Physics
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The University of Osaka
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National University of Science and Technology POLITEHNICA Bucharest
Azerbaijan National Academy of Sciences
Universidade de São Paulo
Universidad de La Serena
Georgian Academy of Sciences E. Andronikashvili Institute of Physics
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Technion-Israel Institute of Technology
University of the Witwatersrand
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National Institute for Research and Development of Isotopic and Molecular Technologies
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Khalifa University of Science and Technology
TOBB University of Economics and Technology
Tokyo Metropolitan University

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6 Scopus citations

Abstract

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 m_t=172.95±0.53 GeV, which is the most precise ATLAS measurement from a single channel.

Original language	English
Article number	139608
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	867
DOIs	https://doi.org/10.1016/j.physletb.2025.139608
State	Published - Aug 2025

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10.1016/j.physletb.2025.139608

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title = "Measurement of the top quark mass with the ATLAS detector using tt¯ events with a high transverse momentum top quark",

abstract = "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.",

author = "G. Aad and E. Aakvaag and B. Abbott and S. Abdelhameed and S. Kabana and \{ATLAS Collaboration\}",

note = "Publisher Copyright: {\textcopyright} 2025 CERN for the benefit of the ATLAS Collaboration",

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month = aug,

doi = "10.1016/j.physletb.2025.139608",

language = "English",

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journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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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

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 -

Measurement of the top quark mass with the ATLAS detector using tt¯ events with a high transverse momentum top quark

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