Determining the Chirality of Yukawa Couplings via Single Charged Higgs Boson Production in Polarized Photon Collisions

2002/03/31 by Hong-Jian He, Shinya Kanemura, C.–P. Yuan +1 · 6 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevlett.89.101803

published as Phys.Rev.Lett. 89 (2002) 101803 · Version accepted by Physical Review Letters (references added, minor rewording, RevTex4)

arxiv created 2002/07/31 · openalex publication_date 2002/08/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

When the charged Higgs boson is too heavy to be produced in pairs, the predominant production mechanism at linear colliders is via the single charged Higgs boson production processes, such as e^\ensuremath-e⁺\ensuremath→bcH⁺,\ensuremathτ\ensuremathνH⁺ and \ensuremathγ\ensuremathγ\ensuremath→bcH⁺,\ensuremathτ\ensuremathνH⁺. We show that the yield of a heavy charged Higgs boson at a \ensuremathγ\ensuremathγ collider is typically 1 or 2 orders of magnitude larger than that at an e^\ensuremath-e⁺ collider. Furthermore, a polarized \ensuremathγ\ensuremathγ collider can determine the chirality of the Yukawa couplings of fermions with charged Higgs boson via single charged Higgs boson production and, thus, discriminate models of new physics.

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