Search for dark matter in association with an energetic photon in pp collisions at √s = 13 TeV with the ATLAS detector

The ATLAS collaboration

doi:10.1007/JHEP02(2021)226

Search for dark matter in association with an energetic photon in pp collisions at √s = 13 TeV with the ATLAS detector

The ATLAS collaboration

School of Physics and Astronomy

National University of Science and Technology POLITEHNICA Bucharest
iThemba Labs
Department of Physics
University of South Africa
Cadi Ayyad University
Moroccan Foundation for Advanced Science Innovation and Research (MAScIR)
Dep Física and CEFITEC of Faculdade de Ciências e Tecnologia
NOVA University Lisbon
CERN
Aix-Marseille Université
University of Oklahoma
University of Massachusetts
University of Göttingen
Royal Holloway University of London
University of Toronto
University of Copenhagen
University of Sussex
Technion-Israel Institute of Technology
Argonne National Laboratory
National Institute for Nuclear Physics
Abdus Salam International Centre for Theoretical Physics
King's College London
Johannes Gutenberg University Mainz
Université Grenoble Alpes
AGH University of Krakow
Northern Illinois University
Ludwig Maximilian University of Munich
Bogazici University
Istanbul University
University of Geneva
Rutherford Appleton Laboratory
University of California at Santa Cruz
Université Paris-Saclay
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Radboud University Nijmegen
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Laboratório de Instrumentação e Física Experimental de Partículas
University of Granada
Instituto de Física Teórica de la Universidad Autónoma de Madrid
University of Alberta
Iowa State University
University of Freiburg
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KTH Royal Institute of Technology
Universidad Antonio Nariño
California State University Sacramento
Hiroshima Institute of Technology
Transilvania University of Brasov
National Institute for Research and Development of Isotopic and Molecular Technologies
Centre de Calcul de l’Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)
Universidad Nacional de Colombia
Louisiana Tech University
Bulgarian Academy of Sciences
TOBB University of Economics and Technology
University of Hamburg
Tel Aviv University
Kyoto University of Education
Wigner Research Centre for Physics
Giresun Universitesi

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

50 Scopus citations

Abstract

A search for dark matter is conducted in final states containing a photon and missing transverse momentum in proton-proton collisions at s = 13 TeV. The data, collected during 2015–2018 by the ATLAS experiment at the CERN LHC, correspond to an integrated luminosity of 139 fb⁻¹. No deviations from the predictions of the Standard Model are observed and 95% confidence-level upper limits between 2.45 fb and 0.5 fb are set on the visible cross section for contributions from physics beyond the Standard Model, in different ranges of the missing transverse momentum. The results are interpreted as 95% confidence-level limits in models where weakly interacting dark-matter candidates are pair-produced via an s-channel axial-vector or vector mediator. Dark-matter candidates with masses up to 415 (580) GeV are excluded for axial-vector (vector) mediators, while the maximum excluded mass of the mediator is 1460 (1470) GeV. In addition, the results are expressed in terms of 95% confidence-level limits on the parameters of a model with an axion-like particle produced in association with a photon, and are used to constrain the coupling g_aZ_γ of an axion-like particle to the electroweak gauge bosons. [Figure not available: see fulltext.]

Original language	English
Article number	226
Journal	Journal of High Energy Physics
Volume	2021
Issue number	2
DOIs	https://doi.org/10.1007/JHEP02(2021)226
State	Published - Feb 2021

Funding

Funders	Funder number
Science and Technology Facilities Council	ST/S000747/1
Horizon 2020 Framework Programme	754510

Keywords

Dark matter
Hadron-Hadron scattering (experiments)

Access to Document

10.1007/JHEP02(2021)226

Cite this

@article{7205c1b847744624b0da655196888319,

title = "Search for dark matter in association with an energetic photon in pp collisions at √s = 13 TeV with the ATLAS detector",

abstract = "A search for dark matter is conducted in final states containing a photon and missing transverse momentum in proton-proton collisions at s = 13 TeV. The data, collected during 2015–2018 by the ATLAS experiment at the CERN LHC, correspond to an integrated luminosity of 139 fb−1. No deviations from the predictions of the Standard Model are observed and 95\% confidence-level upper limits between 2.45 fb and 0.5 fb are set on the visible cross section for contributions from physics beyond the Standard Model, in different ranges of the missing transverse momentum. The results are interpreted as 95\% confidence-level limits in models where weakly interacting dark-matter candidates are pair-produced via an s-channel axial-vector or vector mediator. Dark-matter candidates with masses up to 415 (580) GeV are excluded for axial-vector (vector) mediators, while the maximum excluded mass of the mediator is 1460 (1470) GeV. In addition, the results are expressed in terms of 95\% confidence-level limits on the parameters of a model with an axion-like particle produced in association with a photon, and are used to constrain the coupling gaZγ of an axion-like particle to the electroweak gauge bosons. [Figure not available: see fulltext.]",

keywords = "Dark matter, Hadron-Hadron scattering (experiments)",

author = "\{The ATLAS collaboration\} and G. Aad and B. Abbott and Abbott, \{D. C.\} and \{Abed Abud\}, A. and K. Abeling and Abhayasinghe, \{D. K.\} and Abidi, \{S. H.\} and AbouZeid, \{O. S.\} and Abraham, \{N. L.\} and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and B. Achkar and L. Adam and \{Adam Bourdarios\}, C. and L. Adamczyk and L. Adamek and J. Adelman and M. Adersberger and A. Adiguzel and S. Adorni and T. Adye and Affolder, \{A. A.\} and Y. Afik and C. Agapopoulou and Agaras, \{M. N.\} and A. Aggarwal and C. Agheorghiesei and Aguilar-Saavedra, \{J. A.\} and \{Alconada Verzini\}, \{M. J.\} and L. Barak and U. Barron and G. Bella and Y. Benhammou and Biswal, \{J. P.\} and T. Cao and B. Chen and H. Cohen and E. Etzion and G. Koren and O. Kuprash and Lutz, \{M. S.\} and \{Pascual Dominguez\}, L. and M. Pitt and D. Reikher and \{Salvador Salas\}, A. and A. Soffer and Tamir, \{N. M.\} and D. Vannicola",

note = "Publisher Copyright: {\textcopyright} 2021, The Author(s).",

year = "2021",

month = feb,

doi = "10.1007/JHEP02(2021)226",

language = "אנגלית",

volume = "2021",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

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T1 - Search for dark matter in association with an energetic photon in pp collisions at √s = 13 TeV with the ATLAS detector

AU - The ATLAS collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abbott, D. C.

AU - Abed Abud, A.

AU - Abeling, K.

AU - Abhayasinghe, D. K.

AU - Abidi, S. H.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Achkar, B.

AU - Adam, L.

AU - Adam Bourdarios, C.

AU - Adamczyk, L.

AU - Adamek, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adiguzel, A.

AU - Adorni, S.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agapopoulou, C.

AU - Agaras, M. N.

AU - Aggarwal, A.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Alconada Verzini, M. J.

AU - Barak, L.

AU - Barron, U.

AU - Bella, G.

AU - Benhammou, Y.

AU - Biswal, J. P.

AU - Cao, T.

AU - Chen, B.

AU - Cohen, H.

AU - Etzion, E.

AU - Koren, G.

AU - Kuprash, O.

AU - Lutz, M. S.

AU - Pascual Dominguez, L.

AU - Pitt, M.

AU - Reikher, D.

AU - Salvador Salas, A.

AU - Soffer, A.

AU - Tamir, N. M.

AU - Vannicola, D.

PY - 2021/2

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N2 - A search for dark matter is conducted in final states containing a photon and missing transverse momentum in proton-proton collisions at s = 13 TeV. The data, collected during 2015–2018 by the ATLAS experiment at the CERN LHC, correspond to an integrated luminosity of 139 fb−1. No deviations from the predictions of the Standard Model are observed and 95% confidence-level upper limits between 2.45 fb and 0.5 fb are set on the visible cross section for contributions from physics beyond the Standard Model, in different ranges of the missing transverse momentum. The results are interpreted as 95% confidence-level limits in models where weakly interacting dark-matter candidates are pair-produced via an s-channel axial-vector or vector mediator. Dark-matter candidates with masses up to 415 (580) GeV are excluded for axial-vector (vector) mediators, while the maximum excluded mass of the mediator is 1460 (1470) GeV. In addition, the results are expressed in terms of 95% confidence-level limits on the parameters of a model with an axion-like particle produced in association with a photon, and are used to constrain the coupling gaZγ of an axion-like particle to the electroweak gauge bosons. [Figure not available: see fulltext.]

AB - A search for dark matter is conducted in final states containing a photon and missing transverse momentum in proton-proton collisions at s = 13 TeV. The data, collected during 2015–2018 by the ATLAS experiment at the CERN LHC, correspond to an integrated luminosity of 139 fb−1. No deviations from the predictions of the Standard Model are observed and 95% confidence-level upper limits between 2.45 fb and 0.5 fb are set on the visible cross section for contributions from physics beyond the Standard Model, in different ranges of the missing transverse momentum. The results are interpreted as 95% confidence-level limits in models where weakly interacting dark-matter candidates are pair-produced via an s-channel axial-vector or vector mediator. Dark-matter candidates with masses up to 415 (580) GeV are excluded for axial-vector (vector) mediators, while the maximum excluded mass of the mediator is 1460 (1470) GeV. In addition, the results are expressed in terms of 95% confidence-level limits on the parameters of a model with an axion-like particle produced in association with a photon, and are used to constrain the coupling gaZγ of an axion-like particle to the electroweak gauge bosons. [Figure not available: see fulltext.]

KW - Dark matter

KW - Hadron-Hadron scattering (experiments)

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DO - 10.1007/JHEP02(2021)226

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AN - SCOPUS:85129733924

SN - 1126-6708

VL - 2021

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 2

M1 - 226

ER -

Search for dark matter in association with an energetic photon in pp collisions at √s = 13 TeV with the ATLAS detector

Abstract

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Keywords

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