On supersymmetric contributions to the CP asymmetry of the B -> phi K_S

Details On supersymmetric contributions to the CP asymmetry of the B -> phi K_S On supersymmetric contributions to the CP asymmetry of the B -> phi K_S

2002-12-02

arxiv.org/abs/hep-ph/0212023v2

Phys.Rev. D67 (2003) 055009

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 3 figures

Scientific paper

10.1103/PhysRevD.67.055009

We analyse the CP asymmetry of the B -> phi K_S process in general supersymmetric models. In the framework of the mass insertion approximation, we derive model independent limits for the mixing CP asymmetry. We show that chromomagnetic type of operator may play an important role in accounting for the deviation of the mixing CP asymmetry between B -> phi K_S and B -> J/psi K_S processes observed by Belle and BaBar experiments. A possible correlation between the direct and mixing CP asymmetry is also discussed. Finally, we apply our result in minimal supergravity model and supersymmetric models with non-universal soft terms.

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