Rare exclusive decays of the Z boson revisited

Ting Chung Huang, Frank Petriello

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The realization that first- and second-generation Yukawa couplings can be probed by decays of the Higgs boson to a meson in association with a photon has renewed interest in such rare exclusive decays. We present here a detailed study of the rare Z-boson processes Z→J/ψ+γ, Z→ +γ, and Z→φ+γ that can serve as benchmarks for the analogous Higgs-boson decays. We include both direct-production and fragmentation contributions to these decays and consider the leading QCD corrections and the relativistic corrections to the J/ψ and processes. We present numerical predictions for the branching ratios that include a careful accounting of the theoretical uncertainties.

Original languageEnglish (US)
Article number014007
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number1
StatePublished - Jul 6 2015

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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