Search for Nearly Mass-Degenerate Higgsinos Using Low-Momentum Mildly Displaced Tracks in pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector

ATLAS Collaboration

doi:10.1103/PhysRevLett.132.221801

Search for Nearly Mass-Degenerate Higgsinos Using Low-Momentum Mildly Displaced Tracks in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector

ATLAS Collaboration

Aix-Marseille Université
University of Bergen
University of Oklahoma
Georg August Universität Göttingen
pro3dure medical GmbH
Brookhaven National Laboratory Physics Department
Southern Methodist University
University Mohammed V in Rabat
Tel Aviv University
Technion - Israel Institute of Technology
Polytechnic University
Sezione INFN di Roma La Sapienza
ICTP
Heidelberg University
Laboratoire d’Annecy-Le-Vieux de Physique des Particules (CNRS/IN2P3/LAPP)
Univ of Mining and Metallurgy
Brandeis University
University of Manchester
USA
Istanbul University
Rutherford Appleton Laboratory
University of California at Santa Cruz
University of Chicago
Dept. d'Estructura I Constituents De La Matèria and IFAE
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia
University of Pavia
Johannes Gutenberg University
'Al. I. Cuza' University
European Organization for Nuclear Research
McGill University and Génome Québec Innovation Centre
University of London
Zhengzhou University
INFN Sezione di Roma Tor Vergata
University of Rome Tor Vergata
University of Valencia
Hassan II University of Casablanca
Weizmann Institute of Science Israel
Lund University
Waseda University
University of Bonn
Bogazici University
Columbia University
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
University of Victoria
INFN, Laboratori Nazionali Di Frascati
University of Grenoble Alpes
University of Edinburgh
Max-Planck-Institut für Physik
Dep Física and CEFITEC of Faculdade de Ciências e Tecnologia
Oklahoma State University
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Technical University of Athens
University of Geneva
University of Siegen
Czech Technical University in Prague
Department of Physics, Lancaster University
Academia Sinica Taipei
University of Liverpool
University of Johannesburg
INFN Sezione di Milano
University Paris-Sud
University of Sussex
Universidad Técnica Federico Santa María
University of Birmingham
INFN Sezione di Napoli
Università di Napoli Federico II
National University of La Plata
University of Washington
Universidad Autónoma de Madrid
Federal University of Rio de Janeiro
University of Munich
University of Michigan, Ann Arbor
University of Toronto
Laboratório de Instrumentacão e Física Experimental de Partículas
High Energy Accelerator Research Organization (KEK)
University of Oslo
University of Sheffield
University of Texas at Austin
Stockholm University
University of Milan
University of Athens
SNS and INFN
SUNY
University of Tokyo
Deutsches Elektronen-Synchrotron (DESY)
Humboldt-Universität zu Berlin
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
Duke University
Université de Montréal
University of Freiburg
University of Amsterdam
Universita La Sapienza
Nagoya University
Ochanomizu University
Comenius University
University of California, Irvine
University of Cape Town
University of Illinois at Urbana-Champaign
Mohammed VI Polytechnic University
University of Pennsylvania
Institute of Experimental Physics Slovak Academy of Sciences
Aristotle University of Thessaloniki
Carleton University
University of Oregon
Queen Mary University of London
Yale University
University of Belgrade
University of Texas at Arlington
DIBINEM, Alma Mater Studiorum, University of Bologna
University of Cambridge
University of Pittsburgh
School of Physics
University of Genova
Sezione INFN di Genova
Stanford University
Joint Laboratory of Optics
University of Science and Technology of China
University of Oxford
University College London
Institute of High Energy Physics Chinese Academy of Science
TRIUMF
University of Glasgow
Ciudad Universitaria Pab. 1
Centre de Recherche Institut du Cerveau et de la Moelle
Tufts University
University of Bern
University of Warwick
Istinye University
State University of Rio de Janeiro
United Arab Emirates University
Broad Institute of Harvard University
Uppsala University
Lawrence Berkeley National Laboratory
Univ-Paris Diderot Sorbonne Paris-Cité
Charles University
Technische Universität Dresden
University of Würzburg
University of Gaziantep
Universite della Calabria
LAIC, Université d'Auvergne
Ohio State University
Bergische Universität Wuppertal
University of Massachusetts Amherst
Simon Fraser University
Boston University
Michigan State University
Justus-Liebig-Universität Gießen
University of Chinese Academy of Sciences
Nanjing University
Ankara University School of Medicine
Indiana University Bloomington
University of Pisa
Niels Bohr Institutet
Institute for Mathematics
PT Government Associated Laboratory, University of Minho
Istituto Nazionale di Fisica Nucleare, Sezione di Lecce
University of Salento
Universidade Federal de Juiz de Fora
Javakhishvili Tbilisi State University
Argonne National Laboratory
Shanghai Jiao Tong University
Tsinghua University
University of Wisconsin
Chinese University of Hong Kong
University of Arizona
National Tsing Hua University
Institute of Physics of the Czech Academy of Sciences
Univ. of Ljubljana
Univ.́ degli Studi di Udine
Instituto Superior Técnico
INFN-TIFPA
University of Trento
Sez. di Roma Tre
Pontificia Universidad Católica de Chile
Millennium Institute for Subatomic physics at high energy frontier (SAPHIR)
University of São Paulo
University of Bucharest
Université Ibn-Tofail
New York University
Louisiana Tech University
Shandong University
University of Adelaide
Coimbra University Pó lo II
National Institute of Physics, College of Science, University of the Philippines, Diliman
Federal University of Bahia
Iowa University
University of British Columbia
University of New Mexico
NCSR Demokritos
Jagiellonian University
University of Alberta
University of the Witwatersrand, Johannesburg
University of Lisboa
University of Georgia
West University in Timisoara
California State University
Tsukuba University
Shinshu University
Tokyo Institute of Technology
Iowa State University
Osaka University
National University of Science and Technology Politechnica
University of Hong Kong
Azerbaijan Academy of Sciences
University of Texas at Dallas
Universidad de Tarapacá
York University
Faculty of Science
University of Innsbruck
University Andrés Bello
Kobe University
Center for Autonomous Systems
Hong Kong University of Science and Technology
Sun Yat-Sen University
Centro Nacional de Microelectrónica (IMB-CNM-CSIC)
Centro de Física Nuclear Universidade de Lisboa
Université de Toulouse
University Mohammed I
Universidad Antonio Nariño
University of Sydney
Kyushu University
Transilvania University of Brasov
National Institute for R&D of Isotopic and Molecular Technologies
Universidad Nacional de Colombia
University of Sharjah
Universidad de la Serena in la Serena
TOBB University of Economics and Technology
University of California at Berkeley

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

Abstract

Higgsinos with masses near the electroweak scale can solve the hierarchy problem and provide a dark matter candidate, while detecting them at the LHC remains challenging if their mass splitting is O(1 GeV). This Letter presents a novel search for nearly mass-degenerate Higgsinos in events with an energetic jet, missing transverse momentum, and a low-momentum track with a significant transverse impact parameter using 140 fb^{-1} of proton-proton collision data at sqrt[s]=13 TeV collected by the ATLAS experiment. For the first time since LEP, a range of mass splittings between the lightest charged and neutral Higgsinos from 0.3 to 0.9 GeV is excluded at 95% confidence level, with a maximum reach of approximately 170 GeV in the Higgsino mass.

Original language	English
Pages (from-to)	221801
Number of pages	1
Journal	Physical Review Letters
Volume	132
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.132.221801
State	Published - 31 May 2024
Externally published	Yes

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10.1103/PhysRevLett.132.221801

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@article{d550ea0868c048c1b6bc9bb725b0cdc9,

title = "Search for Nearly Mass-Degenerate Higgsinos Using Low-Momentum Mildly Displaced Tracks in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector",

abstract = "Higgsinos with masses near the electroweak scale can solve the hierarchy problem and provide a dark matter candidate, while detecting them at the LHC remains challenging if their mass splitting is O(1 GeV). This Letter presents a novel search for nearly mass-degenerate Higgsinos in events with an energetic jet, missing transverse momentum, and a low-momentum track with a significant transverse impact parameter using 140 fb\textasciicircum{}\{-1\} of proton-proton collision data at sqrt[s]=13 TeV collected by the ATLAS experiment. For the first time since LEP, a range of mass splittings between the lightest charged and neutral Higgsinos from 0.3 to 0.9 GeV is excluded at 95\% confidence level, with a maximum reach of approximately 170 GeV in the Higgsino mass.",

author = "\{ATLAS Collaboration\} and G. Aad and E. Aakvaag and B. Abbott and K. Abeling and Abicht, \{N. J.\} and Abidi, \{S. H.\} and M. Aboelela and A. Aboulhorma and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and A. Ackermann and \{Adam Bourdarios\}, C. and L. Adamczyk and Addepalli, \{S. V.\} and Addison, \{M. J.\} and J. Adelman and A. Adiguzel and T. Adye and Affolder, \{A. A.\} and Y. Afik and Agaras, \{M. N.\} and J. Agarwala and A. Aggarwal and C. Agheorghiesei and A. Ahmad and F. Ahmadov and Ahmed, \{W. S.\} and S. Ahuja and X. Ai and G. Aielli and A. Aikot and \{Ait Tamlihat\}, M. and B. Aitbenchikh and I. Aizenberg and M. Akbiyik and {\AA}kesson, \{T. P.A.\} and Akimov, \{A. V.\} and D. Akiyama and Akolkar, \{N. N.\} and S. Aktas and \{Al Khoury\}, K. and Alberghi, \{G. L.\} and J. Albert and P. Albicocco and Albouy, \{G. L.\} and S. Alderweireldt and L. Heinrich and E. Kourlitis",

year = "2024",

month = may,

day = "31",

doi = "10.1103/PhysRevLett.132.221801",

language = "English",

volume = "132",

pages = "221801",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "22",

}

TY - JOUR

T1 - Search for Nearly Mass-Degenerate Higgsinos Using Low-Momentum Mildly Displaced Tracks in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector

AU - ATLAS Collaboration

AU - Aad, G.

AU - Aakvaag, E.

AU - Abbott, B.

AU - Abeling, K.

AU - Abicht, N. J.

AU - Abidi, S. H.

AU - Aboelela, M.

AU - Aboulhorma, A.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Ackermann, A.

AU - Adam Bourdarios, C.

AU - Adamczyk, L.

AU - Addepalli, S. V.

AU - Addison, M. J.

AU - Adelman, J.

AU - Adiguzel, A.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agaras, M. N.

AU - Agarwala, J.

AU - Aggarwal, A.

AU - Agheorghiesei, C.

AU - Ahmad, A.

AU - Ahmadov, F.

AU - Ahmed, W. S.

AU - Ahuja, S.

AU - Ai, X.

AU - Aielli, G.

AU - Aikot, A.

AU - Ait Tamlihat, M.

AU - Aitbenchikh, B.

AU - Aizenberg, I.

AU - Akbiyik, M.

AU - Åkesson, T. P.A.

AU - Akimov, A. V.

AU - Akiyama, D.

AU - Akolkar, N. N.

AU - Aktas, S.

AU - Al Khoury, K.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albicocco, P.

AU - Albouy, G. L.

AU - Alderweireldt, S.

AU - Heinrich, L.

AU - Kourlitis, E.

PY - 2024/5/31

Y1 - 2024/5/31

N2 - Higgsinos with masses near the electroweak scale can solve the hierarchy problem and provide a dark matter candidate, while detecting them at the LHC remains challenging if their mass splitting is O(1 GeV). This Letter presents a novel search for nearly mass-degenerate Higgsinos in events with an energetic jet, missing transverse momentum, and a low-momentum track with a significant transverse impact parameter using 140 fb^{-1} of proton-proton collision data at sqrt[s]=13 TeV collected by the ATLAS experiment. For the first time since LEP, a range of mass splittings between the lightest charged and neutral Higgsinos from 0.3 to 0.9 GeV is excluded at 95% confidence level, with a maximum reach of approximately 170 GeV in the Higgsino mass.

AB - Higgsinos with masses near the electroweak scale can solve the hierarchy problem and provide a dark matter candidate, while detecting them at the LHC remains challenging if their mass splitting is O(1 GeV). This Letter presents a novel search for nearly mass-degenerate Higgsinos in events with an energetic jet, missing transverse momentum, and a low-momentum track with a significant transverse impact parameter using 140 fb^{-1} of proton-proton collision data at sqrt[s]=13 TeV collected by the ATLAS experiment. For the first time since LEP, a range of mass splittings between the lightest charged and neutral Higgsinos from 0.3 to 0.9 GeV is excluded at 95% confidence level, with a maximum reach of approximately 170 GeV in the Higgsino mass.

UR - https://www.scopus.com/pages/publications/85196232839

U2 - 10.1103/PhysRevLett.132.221801

DO - 10.1103/PhysRevLett.132.221801

M3 - Article

C2 - 38877905

AN - SCOPUS:85196232839

SN - 0031-9007

VL - 132

SP - 221801

JO - Physical Review Letters

JF - Physical Review Letters

IS - 22

ER -

Search for Nearly Mass-Degenerate Higgsinos Using Low-Momentum Mildly Displaced Tracks in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector

Abstract

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