科研之友
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摘要
We analyze the 5 sigma difference between the CP asymmetries of the B-0 -> K+ pi(-) and B+ -> K+ pi(0) decays within the soft collinear effective theory. We find that in the standard model, such a big difference cannot be achieved. We classify then the requirements for the possible New Physics models, which can be responsible for the experimental results. As an example of a New Physics model we study minimal supersymmetric models, and find that the measured asymmetry can be obtained with nonminimal flavor violation.
- 出版日期2010-5-1
