Search for direct production of electroweakinos in final states with missing transverse momentum and a Higgs boson decaying into photons in "padding-size-4-x display--inline-block" style="background: var(--highlight-yellow); color: inherit;">pp collisions at √s = 13 TeV with the ATLAS detector

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dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbbott, D.C.
dc.contributor.authorAbed Abud, A.
dc.contributor.authorAbeling, K.
dc.contributor.authorAbhayasinghe, D.K.
dc.contributor.authorAbidi, S.H.
dc.contributor.authorAbouZeid, O.S.
dc.contributor.authorAbraham, N.L.
dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbreu, H.
dc.contributor.authorAbulaiti, Y.
dc.date.accessioned2021-07-27T23:40:07Z
dc.date.available2021-07-27T23:40:07Z
dc.date.issued2020-10
dc.descriptionIndexación: Scopus.es
dc.description.abstractA search for a chargino-neutralino pair decaying via the 125 GeV Higgs boson into photons is presented. The study is based on the data collected between 2015 and 2018 with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 139 fb−1 of pp collisions at a centre-of-mass energy of 13 TeV. No significant excess over the expected background is observed. Upper limits at 95% confidence level for a massless χ˜10 are set on several electroweakino production cross-sections and the visible cross-section for beyond the Standard Model processes. In the context of simplified supersymmetric models, 95% confidence-level limits of up to 310 GeV in m(χ˜1±/χ˜20), where m(χ˜10) = 0.5 GeV, are set. Limits at 95% confidence level are also set on the χ˜1±χ˜20 cross-section in the mass plane of m(χ˜1±/χ˜20) and m(χ˜10), and on scenarios with gravitino as the lightest supersymmetric particle. Upper limits at the 95% confidence-level are set on the higgsino production cross-section. Higgsino masses below 380 GeV are excluded for the case of the higgsino fully decaying into a Higgs boson and a gravitino. [Figure not available: see fulltext.] © 2020, The Author(s).es
dc.description.urihttps://link-springer-com.recursosbiblioteca.unab.cl/article/10.1007/JHEP10(2020)005
dc.identifier.citationJournal of High Energy PhysicsOpen AccessVolume 2020, Issue 101 October 2020 Article number 5es
dc.identifier.doi10.1007/JHEP10(2020)005
dc.identifier.issn1029-8479
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/19527
dc.language.isoenes
dc.publisherSpringer Science and Business Media Deutschland GmbHes
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectHadron-Hadron scattering (experiments)es
dc.titleSearch for direct production of electroweakinos in final states with missing transverse momentum and a Higgs boson decaying into photons in "padding-size-4-x display--inline-block" style="background: var(--highlight-yellow); color: inherit;">pp collisions at √s = 13 TeV with the ATLAS detectores
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