Search for flavor-changing neutral current interactions of the top quark and Higgs boson in final states with two photons in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Dataset

Abstract

Proton-proton interactions resulting in final states with two photons are studied in a search for the
signature of flavor-changing neutral current interactions of top quarks (t) and Higgs bosons (H). The
analysis is based on data collected at a center-of-mass energy of 13 TeV with the CMS detector at the LHC,
corresponding to an integrated luminosity of 137 fb−1. No significant excess above the background
prediction is observed. Upper limits on the branching fractions (B) of the top quark decaying to a Higgs
boson and an up (u) or charm (c) quark are derived through a binned fit to the diphoton invariant mass
spectrum. The observed (expected) 95% confidence level upper limits are found to be 0.019% (0.031%) for
Bðt → HuÞ and 0.073% (0.051%) for Bðt → HcÞ. These are the strictest upper limits yet determined.
Datum van beschikbaarheid24 nov 2022
UitgeverHEPData

Format

  • Format

Citeer dit