Search for a low-mass $\tau^-\tau^+$ resonance in association with a bottom quark in proton-proton collisions at $\sqrt{s} =$ 13 TeV

  • Shimaa Abu Zeid (Creator)
  • Freya Blekman (Creator)
  • Jorgen D'Hondt (Creator)
  • Jarne Theo De Clercq (Creator)
  • Kevin Deroover (Creator)
  • Giannis Flouris (Creator)
  • Denys Lontkovskyi (Creator)
  • Steven Lowette (Creator)
  • Ivan Marchesini (Creator)
  • Seth Moortgat (Creator)
  • Lieselotte Moreels (Creator)
  • Quentin Python (Creator)
  • Kirill Skovpen (Creator)
  • Stefaan Tavernier (Creator)
  • Walter Van Doninck (Creator)
  • Petra Van Mulders (Creator)
  • Isis Marina Van Parijs (Creator)

Dataset

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 bottomlike 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.
Datum van beschikbaarheid26 apr 2019
UitgeverHEPData

Format

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