Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/11080
Title: Search for direct production of winos and higgsinos in events with two same-charge leptons or three leptons in pp collision data at √s=13 TeV with the ATLAS detector
Authors: Aad, G.
Abbott, B.
Abbott, D. C.
Abeling, K.
Abidi, S. H.
Aboulhorma, A.
Sultansoy, Saleh
Keywords: Hadron-Hadron Scattering
Supersymmetry
Measuring Masses
Pair Production
Top-Quark
Supersymmetry
Strahlung
Program
Decays
Models
Violation
Signature
Publisher: Springer
Abstract: A search for supersymmetry targeting the direct production of winos and higgsinos is conducted in final states with either two leptons (e or mu) with the same electric charge, or three leptons. The analysis uses 139 fb(-1) of pp collision data at root s = 13TeV collected with the ATLAS detector during Run 2 of the Large Hadron Collider. No significant excess over the Standard Model expectation is observed. Simplified and complete models with and without R-parity conservation are considered. In topologies with intermediate states including either Wh or WZ pairs, wino masses up to 525 GeV and 250 GeV are excluded, respectively, for a bino of vanishing mass. Higgsino masses smaller than 440 GeV are excluded in a natural R-parity-violating model with bilinear terms. Upper limits on the production cross section of generic events beyond the Standard Model as low as 40 ab are obtained in signal regions optimised for these models and also for an R-parity-violating scenario with baryon-number-violating higgsino decays into top quarks and jets. The analysis significantly improves sensitivity to supersymmetric models and other processes beyond the Standard Model that may contribute to the considered final states.
URI: https://doi.org/10.1007/JHEP11(2023)150
https://hdl.handle.net/20.500.11851/11080
ISSN: 1029-8479
Appears in Collections:WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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