Higgs boson decays to quarkonia and the Hc̄c coupling

Geoffrey Bodwin*, Frank Petriello, Stoyan Stoynev, Mayda Velasco

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

103 Scopus citations

Abstract

In this paper we discuss decays of the Higgs boson to quarkonia in association with a photon. We identify a new mechanism for producing such final states in Higgs decays that leads to predictions for the decay rates that differ by an order of magnitude from previous estimates. Although the branching ratios for these processes are still small, the processes are experimentally clean, and the H→J/ψγ decay should be observable at a 14 TeV LHC. We point out that quantum interference between two different production mechanisms makes the decay rates sensitive to the HQ̄Q couplings. Consequently, measurements of the H→J/ψγ decay rate would allow one to probe the Higgs-charm coupling directly at the LHC. We discuss the experimental prospects for the observation of these decays and for the direct measurement of the Hc̄c coupling.

Original languageEnglish (US)
Article number053003
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume88
Issue number5
DOIs
StatePublished - Sep 9 2013

ASJC Scopus subject areas

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

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