Search for bottom-squark pair production in pp collision events at √s = 13 TeV with hadronically decaying ꞇ-leptons, b-jets, and missing transverse momentum using the ATLAS detector
Entity
UAM. Departamento de Física TeóricaPublisher
American Physical SocietyDate
2021-08-31Citation
10.1103/PhysRevD.104.032014
Physical Review D 104.3 (2021): 032014
ISSN
2470-0010 (print); 2470-0029 (online)DOI
10.1103/PhysRevD.104.032014Editor's Version
https://doi.org/10.1103/PhysRevD.104.032014Subjects
Boson; Partons; Higgs Bosons; FísicaNote
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMRights
© 2021 CERN, for the ATLAS CollaborationAbstract
A search for pair production of bottom squarks in events with hadronically decaying ꞇ-leptons, b-tagged jets, and large missing transverse momentum is presented. The analyzed dataset is based on proton-proton collisions at √s = 13 TeV delivered by the Large Hadron Collider and recorded by the ATLAS detector from 2015 to 2018, and corresponds to an integrated luminosity of 139 fb-1. The observed data are compatible with the expected Standard Model background. Results are interpreted in a simplified model where each bottom squark is assumed to decay into the second-lightest neutralino χ 20 and a bottom quark, with χ 20 decaying into a Higgs boson and the lightest neutralino χ 10. The search focuses on final states where at least one Higgs boson decays into a pair of hadronically decaying ꞇ-leptons. This allows the acceptance and thus the sensitivity to be significantly improved relative to the previous results at low masses of the χ 20, where bottom-squark masses up to 850 GeV are excluded at the 95% confidence level, assuming a mass difference of 130 GeV between χ 20 and χ 10. Model-independent upper limits are also set on the cross section of processes beyond the Standard Model
Files in this item
Google Scholar:Aad, G.
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ATLAS Collaboration
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Álvarez Estévez, Manuel
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Barreiro Alonso, Fernando
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Calvente López, Sergio
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Camarero Muñoz, Daniel
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Peso Malagón, José del
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Glasman Kuguel, Claudia Beatriz
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Terrón Cuadrado, Juan
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