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).

A search for the decays of stopped long-lived particles at √s = 13 TeV with the ATLAS detector / Aad, G., Abbott, B., Abbott, D.C., Abed Abud, A., Abeling, K., Abhayasinghe, D.K., Abidi, S.H., Abouzeid, O.S., Abraham, N.L., Abramowicz, H., Abreu, H., Abulaiti, Y., Abusleme Hoffman, A.C., Acharya, B.S., Achkar, B., Adam, L., Adam Bourdarios, C., Adamczyk, L., Adamek, L., Adelman, J., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2021:7(2021). [10.1007/JHEP07(2021)173]

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

Artoni, G.;Bagnaia, P.;Betti, A.;Bini, C.;Carnesale, M.;Di Bello, F. A.;Frattari, G.;Gauzzi, P.;Gentile, S.;Giagu, S.;Kado, M.;Lacava, F.;Longarini, I.;Luci, C.;Martinelli, L.;Policicchio, A.;Sabetta, L.;
2021

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).
2021
LHC; Particle Physics; long-lived particles
01 Pubblicazione su rivista::01a Articolo in rivista
A search for the decays of stopped long-lived particles at √s = 13 TeV with the ATLAS detector / Aad, G., Abbott, B., Abbott, D.C., Abed Abud, A., Abeling, K., Abhayasinghe, D.K., Abidi, S.H., Abouzeid, O.S., Abraham, N.L., Abramowicz, H., Abreu, H., Abulaiti, Y., Abusleme Hoffman, A.C., Acharya, B.S., Achkar, B., Adam, L., Adam Bourdarios, C., Adamczyk, L., Adamek, L., Adelman, J., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2021:7(2021). [10.1007/JHEP07(2021)173]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1621034
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