CP violation in B→φKs in a model III two Higgs doublet model

The mixing induced time dependent CP asymmetry, direct CP asymmetry, and branching ratio in B→φKs 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 SφK the model III can agree with the present data, Sφk = −0.39±0.41, within the 1σ error, and the direct CP asymmetry which is zero in SM can be about −8% ∼ −20% in the reasonable regions of parameters