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A search for the decays of stopped long-lived particles at √s = 13 TeV with the ATLAS detector

Aad, G ; Åkesson, Torsten LU orcid ; Corrigan, Eric Edward LU ; Doglioni, Caterina LU ; Geisen, Jannik LU orcid ; Brottmann Hansen, Eva LU ; Hedberg, Vincent LU ; Jarlskog, Göran LU ; Konya, Balazs LU and Lytken, Else LU orcid , et al. (2021) In Journal of High Energy Physics 2021(7).
Abstract
A search for long-lived particles, which have come to rest within the ATLAS detector, is presented. The subsequent decays of these particles can produce high-momentum jets, resulting in large out-of-time energy deposits in the ATLAS calorimeters. These de- cays are detected using data collected during periods in the LHC bunch structure when collisions are absent. The analysed dataset is composed of events from proton-proton collisions produced by the Large Hadron Collider at a centre-of-mass energy of s = 13 TeV and recorded by the ATLAS experiment during 2017 and 2018. The dataset used for this search corresponds to a total live time of 579 hours. The results of this search are used to derive lower limits on the mass of gluino R-hadrons,... (More)
A search for long-lived particles, which have come to rest within the ATLAS detector, is presented. The subsequent decays of these particles can produce high-momentum jets, resulting in large out-of-time energy deposits in the ATLAS calorimeters. These de- cays are detected using data collected during periods in the LHC bunch structure when collisions are absent. The analysed dataset is composed of events from proton-proton collisions produced by the Large Hadron Collider at a centre-of-mass energy of s = 13 TeV and recorded by the ATLAS experiment during 2017 and 2018. The dataset used for this search corresponds to a total live time of 579 hours. The results of this search are used to derive lower limits on the mass of gluino R-hadrons, assuming a branching fraction B(g~→qq¯χ10) = 100%, with masses of up to 1.4 TeV excluded for gluino lifetimes of 10−5 to 103 s. [Figure not available: see fulltext.] © 2021, The Author(s). (Less)
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type
Contribution to journal
publication status
published
subject
keywords
Hadron-Hadron scattering (experiments)
in
Journal of High Energy Physics
volume
2021
issue
7
article number
173
publisher
Springer
external identifiers
  • scopus:85111989668
ISSN
1029-8479
DOI
10.1007/JHEP07(2021)173
language
English
LU publication?
yes
id
83b868f7-be19-4700-9338-9fbcab445db5
date added to LUP
2021-09-03 16:07:08
date last changed
2023-04-02 17:12:34
@article{83b868f7-be19-4700-9338-9fbcab445db5,
  abstract     = {{A search for long-lived particles, which have come to rest within the ATLAS detector, is presented. The subsequent decays of these particles can produce high-momentum jets, resulting in large out-of-time energy deposits in the ATLAS calorimeters. These de- cays are detected using data collected during periods in the LHC bunch structure when collisions are absent. The analysed dataset is composed of events from proton-proton collisions produced by the Large Hadron Collider at a centre-of-mass energy of s = 13 TeV and recorded by the ATLAS experiment during 2017 and 2018. The dataset used for this search corresponds to a total live time of 579 hours. The results of this search are used to derive lower limits on the mass of gluino R-hadrons, assuming a branching fraction B(g~→qq¯χ10) = 100%, with masses of up to 1.4 TeV excluded for gluino lifetimes of 10−5 to 103 s. [Figure not available: see fulltext.] © 2021, The Author(s).}},
  author       = {{Aad, G and Åkesson, Torsten and Corrigan, Eric Edward and Doglioni, Caterina and Geisen, Jannik and Brottmann Hansen, Eva and Hedberg, Vincent and Jarlskog, Göran and Konya, Balazs and Lytken, Else and Mankinen, Katja and Marcon, Caterina and Mjörnmark, Ulf and Mullier, Geoffrey André Adrien and Pöttgen, Ruth and Skorda, Eleni and Smirnova, Oxana and Zwalinski, L}},
  issn         = {{1029-8479}},
  keywords     = {{Hadron-Hadron scattering (experiments)}},
  language     = {{eng}},
  number       = {{7}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{A search for the decays of stopped long-lived particles at √s = 13 TeV with the ATLAS detector}},
  url          = {{http://dx.doi.org/10.1007/JHEP07(2021)173}},
  doi          = {{10.1007/JHEP07(2021)173}},
  volume       = {{2021}},
  year         = {{2021}},
}