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

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 t...

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Detalles Bibliográficos
Autores principales: Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Orellana, Gonzalo Enrique, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Ciencias Exactas
Física
Dark matter
Hadron-Hadron scattering (experiments)
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125048
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125048
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Dark matter
Hadron-Hadron scattering (experiments)
spellingShingle Ciencias Exactas
Física
Dark matter
Hadron-Hadron scattering (experiments)
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Search for dark matter in association with an energetic photon in pp collisions at √s = 13 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
Dark matter
Hadron-Hadron scattering (experiments)
description 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<sub>aZγ</sub> of an axion-like particle to the electroweak gauge bosons.
format Articulo
Articulo
author Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alonso, Francisco
title Search for dark matter in association with an energetic photon in pp collisions at √s = 13 TeV with the ATLAS detector
title_short Search for dark matter in association with an energetic photon in pp collisions at √s = 13 TeV with the ATLAS detector
title_full Search for dark matter in association with an energetic photon in pp collisions at √s = 13 TeV with the ATLAS detector
title_fullStr Search for dark matter in association with an energetic photon in pp collisions at √s = 13 TeV with the ATLAS detector
title_full_unstemmed Search for dark matter in association with an energetic photon in pp collisions at √s = 13 TeV with the ATLAS detector
title_sort search for dark matter in association with an energetic photon in pp collisions at √s = 13 tev with the atlas detector
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/125048
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