Search for long-lived particles using delayed photons in proton-proton collisions at √ s = 13 TeV

© 2019 CERN, for the CMS Collaboration. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and...

Full description

Bibliographic Details
Format: Article
Language:English
Published: American Physical Society (APS) 2021
Online Access:https://hdl.handle.net/1721.1/136052
_version_ 1811091520853377024
collection MIT
description © 2019 CERN, for the CMS Collaboration. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. A search for long-lived particles decaying to photons and weakly interacting particles, using proton-proton collision data at s=13 TeV collected by the CMS experiment in 2016-2017 is presented. The data set corresponds to an integrated luminosity of 77.4 fb-1. Results are interpreted in the context of supersymmetry with gauge-mediated supersymmetry breaking, where the neutralino is long-lived and decays to a photon and a gravitino. Limits are presented as a function of the neutralino proper decay length and mass. For neutralino proper decay lengths of 0.1, 1, 10, and 100 m, masses up to 320, 525, 360, and 215 GeV are excluded at 95% confidence level, respectively. We extend the previous best limits in the neutralino proper decay length by up to one order of magnitude, and in the neutralino mass by up to 100 GeV.
first_indexed 2024-09-23T15:03:41Z
format Article
id mit-1721.1/136052
institution Massachusetts Institute of Technology
language English
last_indexed 2024-09-23T15:03:41Z
publishDate 2021
publisher American Physical Society (APS)
record_format dspace
spelling mit-1721.1/1360522022-10-02T00:19:55Z Search for long-lived particles using delayed photons in proton-proton collisions at √ s = 13 TeV © 2019 CERN, for the CMS Collaboration. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. A search for long-lived particles decaying to photons and weakly interacting particles, using proton-proton collision data at s=13 TeV collected by the CMS experiment in 2016-2017 is presented. The data set corresponds to an integrated luminosity of 77.4 fb-1. Results are interpreted in the context of supersymmetry with gauge-mediated supersymmetry breaking, where the neutralino is long-lived and decays to a photon and a gravitino. Limits are presented as a function of the neutralino proper decay length and mass. For neutralino proper decay lengths of 0.1, 1, 10, and 100 m, masses up to 320, 525, 360, and 215 GeV are excluded at 95% confidence level, respectively. We extend the previous best limits in the neutralino proper decay length by up to one order of magnitude, and in the neutralino mass by up to 100 GeV. 2021-10-27T20:30:35Z 2021-10-27T20:30:35Z 2019 2021-07-01T12:04:22Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/136052 en 10.1103/PHYSREVD.100.112003 Physical Review D Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf American Physical Society (APS) APS
spellingShingle Search for long-lived particles using delayed photons in proton-proton collisions at √ s = 13 TeV
title Search for long-lived particles using delayed photons in proton-proton collisions at √ s = 13 TeV
title_full Search for long-lived particles using delayed photons in proton-proton collisions at √ s = 13 TeV
title_fullStr Search for long-lived particles using delayed photons in proton-proton collisions at √ s = 13 TeV
title_full_unstemmed Search for long-lived particles using delayed photons in proton-proton collisions at √ s = 13 TeV
title_short Search for long-lived particles using delayed photons in proton-proton collisions at √ s = 13 TeV
title_sort search for long lived particles using delayed photons in proton proton collisions at √ s 13 tev
url https://hdl.handle.net/1721.1/136052