Systematic Investigation of Possibilities for New Physics Effects in b→s Penguin Processes(Particles and Fields)

概要

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Although recent experimental results in b→s penguin process seem to be roughly consistent with the standard model predictions, there may be still large possibilities of new physics hiding in these processes. Therefore, here we investigate systematically the potential new physics effects that may appear in time-dependent CP asymmetries of B→φK^0, B→η′K^0 and B→K^0π^0 decay modes, by classifying the cases for the values of the mixinginduced indirect CP asymmetries, S_<φK^0>, S_<η′K^0>, S_<K^0π^0> which are compared to S_<J/ψK^0>. We also show that several B_s decay modes may help to resolve the ambiguities in such an analysis. Through combining analysis with the time-dependent CP asymmetries of B_s decay modes such as B_s→φη′, B_s→η′π^0 and B_s→K^0K^-0, we can determine where the new CP phases precisely come from.
理論物理学刊行会の論文
2006-07-25