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Search for a low-mass τ − τ + resonance in association with a bottom quark in proton-proton collisions at √s = 13 TeV

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2019) Search for a low-mass τ − τ + resonance in association with a bottom quark in proton-proton collisions at √s = 13 TeV. Journal of High Energy Physics, 2019 (3). pp. 1-41. ISSN 1126-6708

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A general search is presented for a low-mass τ−τ+ resonance produced in association with a bottom quark. The search is based on proton-proton collision data at a center-of-mass energy of 13 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb−1. The data are consistent with the standard model expectation. Upper limits at 95% confidence level on the cross section times branching fraction are determined for two signal models: a light pseudoscalar Higgs boson decaying to a pair of τ leptons produced in association with bottom quarks, and a low-mass boson X decaying to a τ-lepton pair that is produced in the decay of a bottom-like quark B such that B → bX. Masses between 25 and 70 GeV are probed for the light pseudoscalar boson with upper limits ranging from 250 to 44 pb. Upper limits from 20 to 0.3 pb are set on B masses between 170 and 450 GeV for X boson masses between 20 and 70 GeV.[Figure not available: see fulltext.]. © 2019, The Author(s).

Item Type: Article (Journal)
Additional Information: 7861/79779
Uncontrolled Keywords: Hadron-Hadron scattering (experiments), Higgs physics, Tau Physics
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Science > Department of Physics
Depositing User: Dr Mohd Adli MD Ali
Date Deposited: 12 Jul 2020 13:28
Last Modified: 12 Jul 2020 13:28
URI: http://irep.iium.edu.my/id/eprint/79779

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