Single Charged Higgs Boson Production in Polarized Photon Collision and the Probe of New Physics

We study single charged Higgs boson production in photon-photon collision as a probe of the new dynamics of Higgs interactions. This is particularly important when the mass (MH±) of charged Higgs bosons (H) is relatively heavy and above the kinematic limit of the pair production (MH± > √ s/2 ). We analyze the cross sections of single charged Higgs boson production from the photon-photon fusion processes, γγ → τ ν̄H+ and γγ → bc̄H+, as motivated by the minimal supersymmetric standard model and the dynamical Topcolor model. We find that the cross sections at such a γγ collider can be sufficiently large even for MH± > √ s/2 , and is typically one to two orders of magnitude higher than that at its parent e−e+ collider. We further demonstrate that the polarized photon beams can provide an important means to determine the chirality structure of Higgs Yukawa interactions with the fermions. PACS numbers: 12.60.-i, 12.15.-y, 11.15.Ex [ September, 2002 ] ∗ [email protected] † [email protected] ‡ [email protected]