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arXiv · hep-ph/0307354

CP violation in $B \to ΦK_S$ in a model III 2HDM

Chao-Shang Huang·Shou-hua Zhu
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Abstract

The mixing induced time dependent CP asymmetry, direct CP asymmetry, and branching ratio in $B \to ΦK_S$ in a model III 2HDM are calculated, in particular, neutral Higgs boson contributions are included. It is shown that satisfying all the relevant experimental constraints, for time dependent CP asymmetry $S_{ϕK}$ the model III can agree with the present data, $S_{ϕk}=-0.39\pm 0.41$, within the $1σ$ error, and the direct CP asymmetry which is zero in SM can be about $ -8% \sim -20%$ in the reasonable regions of parameters.

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Chao-Shang Huang, Shou-hua Zhu. 2003-11-17. CP violation in $B \to ΦK_S$ in a model III 2HDM. https://doi.org/10.1103/physrevd.68.114020

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