Search for neutral long-lived particles in pp collisions at ?s = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter

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dc.authoridAndrew John Beddall / 0000-0002-8451-9672en_US
dc.authoridSerkant Ali Çetin / 0000-0001-5050-8441en_US
dc.authoridOnur Buğra Kolcu / 0000-0002-9177-1286en_US
dc.authorscopusidSerkant Ali Çetin / 34567544400
dc.authorscopusidOnur Buğra Kolcu / 55900757000
dc.authorscopusidAndrew John Beddall / 57215802986
dc.authorwosidSerkant Ali Çetin / AGF-0147-2022en_US
dc.authorwosidAndrew John Beddall / AAE-5820-2022en_US
dc.authorwosidOnur Buğra Kolcu / P-4990-2015en_US
dc.contributor.authorÇetin, Serkant Ali
dc.contributor.authorBeddall, Andrew John
dc.contributor.authorCelebi, E.
dc.contributor.authorAad, G
dc.contributor.authorAbbott, D.C.
dc.contributor.authorAboulhorma, A.
dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbreu, H.
dc.contributor.authorBella, G.
dc.contributor.authorBeloborodov, K.
dc.contributor.authorBeretta, M.
dc.contributor.authorChan, W.S.
dc.contributor.authorChen, C.
dc.contributor.authorKolcu, Onur Buğra
dc.date.accessioned2022-08-29T14:19:08Z
dc.date.available2022-08-29T14:19:08Z
dc.date.issued2022en_US
dc.departmentİstinye Üniversitesien_US
dc.description.abstractA search for decays of pair-produced neutral long-lived particles (LLPs) is presented using 139 fb?1 of proton-proton collision data collected by the ATLAS detector at the LHC in 2015–2018 at a centre-of-mass energy of 13 TeV. Dedicated techniques were developed for the reconstruction of displaced jets produced by LLPs decaying hadronically in the ATLAS hadronic calorimeter. Two search regions are defined for different LLP kinematic regimes. The observed numbers of events are consistent with the expected background, and limits for several benchmark signals are determined. For a SM Higgs boson with a mass of 125 GeV, branching ratios above 10% are excluded at 95% confidence level for values of c times LLP mean proper lifetime in the range between 20 mm and 10 m depending on the model. Upper limits are also set on the cross-section times branching ratio for scalars with a mass of 60 GeV and for masses between 200 GeV and 1 TeV. [Figure not available: see fulltext.] © 2022, The Author(s).en_US
dc.identifier.citationAad, G., Abbott, B., Abbott, D. C., Abed Abud, A., Abeling, K., Abhayasinghe, D. K., . . . The ATLAS collaboration. (2022). Search for neutral long-lived particles in pp collisions at √s = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter. Journal of High Energy Physics, 2022(6) doi:10.1007/JHEP06(2022)005en_US
dc.identifier.doi10.1007/JHEP06(2022)005en_US
dc.identifier.issn1029-8479en_US
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-85134006862en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttp://doi.org/10.1007/JHEP06(2022)005
dc.identifier.urihttps://hdl.handle.net/20.500.12713/3111
dc.identifier.volume2022en_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorÇetin, Serkant Ali
dc.institutionauthorBeddall, Andrew John
dc.institutionauthorKolcu, Onur Buğra
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal of High Energy Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectHadron-Hadron Scatteringen_US
dc.titleSearch for neutral long-lived particles in pp collisions at ?s = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeteren_US
dc.typeArticleen_US

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