Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/76319

TítuloSearch for bottom-squark pair production in pp collision events at √s=13  TeV with hadronically decaying τ-leptons, b-jets, and missing transverse momentum using the ATLAS detector
Autor(es)Onofre, A.
Castro, Nuno Filipe
ATLAS Collaboration
Data2021
EditoraAmerican Physical Society
RevistaPhysical Review D
CitaçãoAad, G., Abbott, B., Abbott, D. C., Abud, A. A., Abeling, K., Abhayasinghe, D. K., . . . Zwalinski, L. (2021). Search for bottom-squark pair production in pp collision events at root s=13 TeV with hadronically decaying tau-leptons, b-jets, and missing transverse momentum using the ATLAS detector. Physical Review D, 104(3). doi: 10.1103/PhysRevD.104.032014
Resumo(s)A search for pair production of bottom squarks in events with hadronically decaying τ-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 ˜χ02 and a bottom quark, with ˜χ02 decaying into a Higgs boson and the lightest neutralino ˜χ01. The search focuses on final states where at least one Higgs boson decays into a pair of hadronically decaying τ-leptons. This allows the acceptance and thus the sensitivity to be significantly improved relative to the previous results at low masses of the ˜χ02, where bottom-squark masses up to 850 GeV are excluded at the 95% confidence level, assuming a mass difference of 130 GeV between ˜χ02 and ˜χ01. Model-independent upper limits are also set on the cross section of processes beyond the Standard Model.
TipoArtigo
URIhttps://hdl.handle.net/1822/76319
DOI10.1103/PhysRevD.104.032014
ISSN2470-0010
e-ISSN2470-0029
Versão da editorahttps://journals.aps.org/prd/abstract/10.1103/PhysRevD.104.032014
Arbitragem científicayes
AcessoAcesso aberto
Aparece nas coleções:LIP - Artigos/papers

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