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

The CMS Collaboration

Research output: Contribution to journalArticle

Abstract

A general search is presented for a low-mass ττ+ 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.].

Original languageEnglish
Article number210
JournalJournal of High Energy Physics
Volume2019
Issue number5
DOIs
Publication statusPublished - 2019 May 1

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quarks
collisions
protons
bosons
leptons
Higgs bosons
center of mass
confidence
luminosity
cross sections
decay
energy

Keywords

  • Hadron-Hadron scattering (experiments)
  • Higgs physics
  • Tau Physics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Search for a low-mass τ τ + resonance in association with a bottom quark in proton-proton collisions at √s = 13 TeV. / The CMS Collaboration.

In: Journal of High Energy Physics, Vol. 2019, No. 5, 210, 01.05.2019.

Research output: Contribution to journalArticle

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abstract = "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.].",
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