Chile | Artículo
dc.creatorAad, G.
dc.creatorAbbott, B.
dc.creatorAbbott, D.C.
dc.creatorAbed Abud, A.
dc.creatorAbeling, K.
dc.creatorAbhayasinghe, D.K.
dc.creatorAbidi, S.H.
dc.creatorAbramowicz, H.
dc.creatorAbreu, H.
dc.creatorAbulaiti, Y.
dc.creatorAbusleme Hoffman, A.C.
dc.creatorAcharya, B.S.
dc.date.accessioned2023-10-19T14:34:59Z
dc.date.accessioned2024-05-02T14:59:39Z
dc.date.available2023-10-19T14:34:59Z
dc.date.available2024-05-02T14:59:39Z
dc.date.created2023-10-19T14:34:59Z
dc.date.issued2022-07
dc.identifierEuropean Physical Journal C Open Access Volume 82, Issue 7July 2022 Article number 606
dc.identifier14346044
dc.identifierhttps://repositorio.unab.cl/xmlui/handle/ria/53503
dc.identifier10.1140/epjc/s10052-022-10489-5
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9261045
dc.description.abstractA search for long-lived charginos produced either directly or in the cascade decay of heavy prompt gluino states is presented. The search is based on proton–proton collision data collected at a centre-of-mass energy of s = 13 TeV between 2015 and 2018 with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 136 fb- 1. Long-lived charginos are characterised by a distinct signature of a short and then disappearing track, and are reconstructed using at least four measurements in the ATLAS pixel detector, with no subsequent measurements in the silicon-microstrip tracking volume nor any associated energy deposits in the calorimeter. The final state is complemented by a large missing transverse-momentum requirement for triggering purposes and at least one high-transverse-momentum jet. No excess above the expected backgrounds is observed. Exclusion limits are set at 95% confidence level on the masses of the chargino and gluino for different chargino lifetimes. Chargino masses up to 660 (210) GeV are excluded in scenarios where the chargino is a pure wino (higgsino). For charginos produced during the cascade decay of a heavy gluino, gluinos with masses below 2.1 TeV are excluded for a chargino mass of 300 GeV and a lifetime of 0.2 ns.
dc.languageen
dc.publisherInstitute for Ionics
dc.rightshttps://creativecommons.org/licenses/by/4.0/
dc.rightsCC BY 4.0 DEED
dc.subjectBoson
dc.subjectPartons
dc.subjectHiggs Bosons
dc.titleSearch for long-lived charginos based on a disappearing-track signature using 136 fb - 1 of pp collisions at √s = 13 TeV with the ATLAS detector
dc.typeArtículo


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