Direct CP Violation in B->phi K_s and New Physics

Details Direct CP Violation in B->phi K_s and New Physics Direct CP Violation in B->phi K_s and New Physics

2002-08-09

arxiv.org/abs/hep-ph/0208087v1

Phys.Rev.Lett. 89 (2002) 231802

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages

Scientific paper

10.1103/PhysRevLett.89.231802

In the presence of large New Physics contributions to loop-induced b->s transitions, sizable direct CP violation in B-> phi K decays is expected on general grounds. We compute explicitly CP-violating effects using QCD factorization and find that, even in the restricted case in which New Physics has the same penguin structure as the Standard Model, the rate asymmetry can be of order one. We briefly discuss a more general scenario and comment on the inclusion of power-suppressed corrections to factorization.

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