First complete one-loop analytic calculation of A0 -> h0h0 gamma in the CP-conserving two Higgs doublet model, with benchmark decay rates and differential distributions.
CP-odd Higgs Boson Production in $e\gamma$ Collisions
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abstract
We investigate the CP-odd Higgs boson production via two-photon processes in $e\gamma$ collisions. The CP-odd Higgs boson, which we denote as $A^0$, is expected to appear in the Two-Higgs Doublet Models (2HDM) as a minimal extension of Higgs sector for which the Minimal Supersymmetric Standard Model (MSSM) is a special case. The scattering amplitude for $e\gamma\rightarrow eA^0$ is evaluated at the electroweak one-loop level. The dominant contribution comes only from top-quark loops when $A^0$ boson is rather light and $\tan\beta$ is not large. There are no contributions from the $W$-boson and $Z$-boson loops nor from the scalar top-quark (stop) loops. The differential cross section for the $A^0$ production is analysed.
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One-loop induced contributions to the rare decay of $A_0 \rightarrow h_0h_0\gamma$ in Two Higgs Doublet Models
First complete one-loop analytic calculation of A0 -> h0h0 gamma in the CP-conserving two Higgs doublet model, with benchmark decay rates and differential distributions.