Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-09-30
Phys.Rev. D68 (2003) 075010
Physics
High Energy Physics
High Energy Physics - Phenomenology
Version published in Physical Review D, (minor refinements, refs updated, 35 pages, 16 figures)
Scientific paper
10.1103/PhysRevD.68.075010
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 ($M_{H^\pm}$) of charged Higgs bosons ($H^{\pm}$) is relatively heavy and above the kinematic limit of the pair production ($M_{H^\pm} > \sqrt{s}/2$). We analyze the cross sections of single charged Higgs boson production from the photon-photon fusion processes, $\gamma\gamma\to \tau \bar \nu H^+$ and $\gamma\gamma\to b \bar c H^+$, as motivated by the minimal supersymmetric standard model and the dynamical Topcolor model. We find that the cross sections at such a $\gamma\gamma$ collider can be sufficiently large even for $M_{H^\pm} > \sqrt{s}/2$, 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.
He Hong-Jian
Kanemura Shinya
Yuan C.--P.
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