Observation of the γγ → ττ Process in Pb + Pb Collisions and Constraints on the τ-Lepton Anomalous Magnetic Moment with the ATLAS Detector

(ATLAS Collaboration)

doi:10.1103/PhysRevLett.131.151802

Observation of the γγ → ττ Process in Pb + Pb Collisions and Constraints on the τ-Lepton Anomalous Magnetic Moment with the ATLAS Detector

(ATLAS Collaboration)

Aix-Marseille Université
University of Oklahoma
University of Massachusetts
University of Göttingen
United States Department of Energy
Mohammed V University in Rabat
Tel Aviv University
Technion-Israel Institute of Technology
New York University
Pontificia Universidad Católica de Chile
National Institute for Nuclear Physics
Abdus Salam International Centre for Theoretical Physics
King's College London
Johannes Gutenberg University Mainz
Université Savoie Mont Blanc
AGH University of Science and Technology
University of Toronto
Brandeis University
Northern Illinois University
Istanbul University
University of Geneva
Rutherford Appleton Laboratory
University of California at Santa Cruz
CERN
Institute for High Energy Physics
University of Pavia
Alexandru Ioan Cuza University of Iaşi
University of Granada
Azerbaijan National Academy of Sciences
McGill University
Royal Holloway University of London
German Electron Synchrotron
University of Rome Tor Vergata
Weizmann Institute of Science
Lund University
Columbia University
University of Victoria BC
Universidad Nacional de La Plata
University of Edinburgh
University of the Witwatersrand
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Technical University of Athens
University of Amsterdam
Czech Technical University in Prague
Academia Sinica - Institute of Physics
University of Sussex
University of Birmingham
University of Naples Federico II
University of Washington
Universidad Autónoma de Madrid
Universidade Federal do Rio de Janeiro
Ludwig Maximilian University of Munich
University of Michigan, Ann Arbor
Laboratório de Instrumentação e Física Experimental de Partículas
University of Valencia
University of Oslo
University of Sheffield
Université Paris-Saclay
University of Texas at Austin
University of Bern
Stockholm University
Oskar Klein Centre
University of Milan
National and Kapodistrian University of Athens
Lawrence Livermore National Laboratory
Oklahoma State University
Lawrence Berkeley National Laboratory
High Energy Accelerator Research Organization, Tsukuba
The University of Tokyo
Humboldt University of Berlin
Universidade Federal de Juiz de Fora
Duke University
University of Liverpool
University of Montreal
University of Freiburg
University of Rome La Sapienza
Nagoya University
Ochanomizu University
Harvard University
Uppsala University
Mohamed I University
Comenius University
University of Cape Town
University of Illinois
Shandong University
University of Wuppertal
Nanjing University
TRIUMF
Aristotle University of Thessaloniki
University of Thessaly
Carleton University
Yale University
University of Belgrade
University of Texas at Arlington
University of Sydney
Charles University
Heidelberg University
University of Cambridge
Cracow
University of Pittsburgh
University of Bonn
University of Melbourne
University of Genoa
University College London
Max Planck Institute for Physics (Werner Heisenberg Institute)
University of Oregon
SLAC National Accelerator Laboratory
Palacký University Olomouc
University of Manchester
University of Science and Technology of China
University of Oxford
CAS - Institute of High Energy Physics
Lancaster University
TU Dortmund University
Roma Tre University
An-Najah National University
University of Glasgow
University of Siegen
Bogazici University
Sorbonne Université
Tufts University
University of Fribourg
University of Warwick
Istinye University
Stony Brook University
Universidade do Estado do Rio de Janeiro
United Arab Emirates University
University of Hassan II Casablanca
University of Arizona
CNRS
Technische Universität Dresden
Queen Mary University of London
University of Würzburg
Argonne National Laboratory
University of Colorado Boulder
Gaziantep University
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University of Wisconsin-Madison
University of Louisville
Université Clermont Auvergne
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Shanghai Jiao Tong University
Universidad Técnica Federico Santa Maria
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Justus Liebig University Giessen
University of Chinese Academy of Sciences
Ankara University
Indiana University Bloomington
University of Pisa
University of Copenhagen
University of Iowa
Westmont College
Radboud University Nijmegen
Autonomous University of Barcelona
University of Minho
University of Salento
Tbilisi State University
Tsinghua University
The Collaborative Innovation Center of Quantum Matter (CICQM)
Chinese University of Hong Kong
National Tsing Hua University
Czech Academy of Sciences
University of Ljubljana
Ben-Gurion University of the Negev
University of Udine
Université Grenoble Alpes
University of Lisbon
University of Johannesburg
University of Naples Parthenope
University of British Columbia
Institute of Particle Physics
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Fondazione Bruno Kessler
University of California at Irvine
University of Pennsylvania School of Arts and Sciences
Universidad de Buenos Aires
York University Toronto
Southern Methodist University
Millennium Institute for Subatomic physics at high energy frontier (SAPHIR)
Universidade de São Paulo
Ibn Tofail University
Demokritos National Centre for Scientific Research
University of Texas at Dallas
University of Adelaide
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City University of New York
National Institute of Physics, College of Science, University of the Philippines, Diliman
University of the Aegean
The University of Chicago
Stanford University
University Politehnica of Bucharest
Jagiellonian University in Kraków
University of Alberta
Centro Studi e Ricerche Enrico Fermi
West University of Timisoara
The California State University
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University of Tsukuba
Shinshu University
Tokyo Institute of Technology
Iowa State University
Technical University of Munich
Kobe University
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Yeditepe University
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Georgian National Academy of Sciences
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Kyoto University
Universidad Andrés Bello
Hellenic Open University
KTH Royal Institute of Technology
Peking University
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California State University Sacramento
Universidad Antonio Nariño
Transilvania University of Brasov
National Institute for Research and Development of Isotopic and Molecular Technologies
Universidad Nacional de Colombia
Louisiana Tech University
Bulgarian Academy of Sciences
Washington College
University of Sharjah
TOBB University of Economics and Technology
University of Hamburg
Kyoto University of Education
Universidad de La Serena

Research output: Contribution to journal › Article › peer-review

51 Citations (Scopus)

Abstract

This Letter reports the observation of Formula Presented-lepton-pair production in ultraperipheral lead-lead collisions Formula Presented and constraints on the Formula Presented-lepton anomalous magnetic moment Formula Presented. The dataset corresponds to an integrated luminosity of Formula Presented of LHC Formula Presented collisions at Formula Presented recorded by the ATLAS experiment in 2018. Selected events contain one muon from a Formula Presented-lepton decay, an electron or charged-particle track(s) from the other Formula Presented-lepton decay, little additional central-detector activity, and no forward neutrons. The Formula Presented process is observed in Formula Presented collisions with a significance exceeding 5 standard deviations and a signal strength of Formula Presented assuming the standard model value for Formula Presented. To measure Formula Presented, a template fit to the muon transverse-momentum distribution from Formula Presented-lepton candidates is performed, using a dimuon (Formula Presented) control sample to constrain systematic uncertainties. The observed 95% confidence-level interval for Formula Presented is Formula Presented.

Original language	English
Article number	151802
Journal	Physical Review Letters
Volume	131
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.131.151802
Publication status	Published - 13 Oct 2023

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.131.151802

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@article{ba9065fd267c4435accebe035c06eaa6,

title = "Observation of the γγ → ττ Process in Pb + Pb Collisions and Constraints on the τ-Lepton Anomalous Magnetic Moment with the ATLAS Detector",

abstract = "This Letter reports the observation of Formula Presented-lepton-pair production in ultraperipheral lead-lead collisions Formula Presented and constraints on the Formula Presented-lepton anomalous magnetic moment Formula Presented. The dataset corresponds to an integrated luminosity of Formula Presented of LHC Formula Presented collisions at Formula Presented recorded by the ATLAS experiment in 2018. Selected events contain one muon from a Formula Presented-lepton decay, an electron or charged-particle track(s) from the other Formula Presented-lepton decay, little additional central-detector activity, and no forward neutrons. The Formula Presented process is observed in Formula Presented collisions with a significance exceeding 5 standard deviations and a signal strength of Formula Presented assuming the standard model value for Formula Presented. To measure Formula Presented, a template fit to the muon transverse-momentum distribution from Formula Presented-lepton candidates is performed, using a dimuon (Formula Presented) control sample to constrain systematic uncertainties. The observed 95\% confidence-level interval for Formula Presented is Formula Presented.",

author = "\{(ATLAS Collaboration)\} and G. Aad and B. Abbott and Abbott, \{D. C.\} and K. Abeling and Abidi, \{S. H.\} and A. Aboulhorma and H. Abramowicz and H. Abreu and Y. Abulaiti and \{Abusleme Hoffman\}, \{A. C.\} and Acharya, \{B. S.\} and B. Achkar and L. Adam and \{Adam Bourdarios\}, C. and L. Adamczyk and L. Adamek and Addepalli, \{S. V.\} and J. Adelman and A. Adiguzel and S. Adorni and T. Adye and Affolder, \{A. A.\} and Y. Afik and Agaras, \{M. N.\} and J. Agarwala and A. Aggarwal and C. Agheorghiesei and Aguilar-Saavedra, \{J. A.\} and A. Ahmad and F. Ahmadov and Ahmed, \{W. S.\} and S. Ahuja and X. Ai and G. Aielli and I. Aizenberg and M. Akbiyik and {\AA}kesson, \{T. P.A.\} and Akimov, \{A. V.\} and \{Al Khoury\}, K. and Alberghi, \{G. L.\} and J. Albert and P. Albicocco and \{Alconada Verzini\}, \{M. J.\} and S. Alderweireldt and M. Aleksa and M. Bhamjee and Connell, \{S. H.\} and Gololo, \{M. G.D.\} and N. Govender and L. Truong",

note = "Publisher Copyright: {\textcopyright} 2023 CERN, for the ATLAS Collaboration.",

year = "2023",

month = oct,

day = "13",

doi = "10.1103/PhysRevLett.131.151802",

language = "English",

volume = "131",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "15",

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TY - JOUR

T1 - Observation of the γγ → ττ Process in Pb + Pb Collisions and Constraints on the τ-Lepton Anomalous Magnetic Moment with the ATLAS Detector

AU - (ATLAS Collaboration)

AU - Aad, G.

AU - Abbott, B.

AU - Abbott, D. C.

AU - Abeling, K.

AU - Abidi, S. H.

AU - Aboulhorma, A.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Abusleme Hoffman, A. C.

AU - Acharya, B. S.

AU - Achkar, B.

AU - Adam, L.

AU - Adam Bourdarios, C.

AU - Adamczyk, L.

AU - Adamek, L.

AU - Addepalli, S. V.

AU - Adelman, J.

AU - Adiguzel, A.

AU - Adorni, S.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agaras, M. N.

AU - Agarwala, J.

AU - Aggarwal, A.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahmad, A.

AU - Ahmadov, F.

AU - Ahmed, W. S.

AU - Ahuja, S.

AU - Ai, X.

AU - Aielli, G.

AU - Aizenberg, I.

AU - Akbiyik, M.

AU - Åkesson, T. P.A.

AU - Akimov, A. V.

AU - Al Khoury, K.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albicocco, P.

AU - Alconada Verzini, M. J.

AU - Alderweireldt, S.

AU - Aleksa, M.

AU - Bhamjee, M.

AU - Connell, S. H.

AU - Gololo, M. G.D.

AU - Govender, N.

AU - Truong, L.

PY - 2023/10/13

Y1 - 2023/10/13

N2 - This Letter reports the observation of Formula Presented-lepton-pair production in ultraperipheral lead-lead collisions Formula Presented and constraints on the Formula Presented-lepton anomalous magnetic moment Formula Presented. The dataset corresponds to an integrated luminosity of Formula Presented of LHC Formula Presented collisions at Formula Presented recorded by the ATLAS experiment in 2018. Selected events contain one muon from a Formula Presented-lepton decay, an electron or charged-particle track(s) from the other Formula Presented-lepton decay, little additional central-detector activity, and no forward neutrons. The Formula Presented process is observed in Formula Presented collisions with a significance exceeding 5 standard deviations and a signal strength of Formula Presented assuming the standard model value for Formula Presented. To measure Formula Presented, a template fit to the muon transverse-momentum distribution from Formula Presented-lepton candidates is performed, using a dimuon (Formula Presented) control sample to constrain systematic uncertainties. The observed 95% confidence-level interval for Formula Presented is Formula Presented.

AB - This Letter reports the observation of Formula Presented-lepton-pair production in ultraperipheral lead-lead collisions Formula Presented and constraints on the Formula Presented-lepton anomalous magnetic moment Formula Presented. The dataset corresponds to an integrated luminosity of Formula Presented of LHC Formula Presented collisions at Formula Presented recorded by the ATLAS experiment in 2018. Selected events contain one muon from a Formula Presented-lepton decay, an electron or charged-particle track(s) from the other Formula Presented-lepton decay, little additional central-detector activity, and no forward neutrons. The Formula Presented process is observed in Formula Presented collisions with a significance exceeding 5 standard deviations and a signal strength of Formula Presented assuming the standard model value for Formula Presented. To measure Formula Presented, a template fit to the muon transverse-momentum distribution from Formula Presented-lepton candidates is performed, using a dimuon (Formula Presented) control sample to constrain systematic uncertainties. The observed 95% confidence-level interval for Formula Presented is Formula Presented.

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DO - 10.1103/PhysRevLett.131.151802

M3 - Article

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AN - SCOPUS:85185370802

SN - 0031-9007

VL - 131

JO - Physical Review Letters

JF - Physical Review Letters

IS - 15

M1 - 151802

ER -

Observation of the γγ → ττ Process in Pb + Pb Collisions and Constraints on the τ-Lepton Anomalous Magnetic Moment with the ATLAS Detector

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