New Physics Contributions to The B -> phi K_S Decay

Details New Physics Contributions to The B -> phi K_S Decay New Physics Contributions to The B -> phi K_S Decay

2003-02-12

arxiv.org/abs/hep-ph/0302094v3

Phys.Rev.D68:014007,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 7 figures; some references added; analysis updated in light of recent BaBar data announced at Moriond conference

Scientific paper

10.1103/PhysRevD.68.014007

Recent measurements of the time-dependent CP asymmetry of the B -> phi K_S decay give results whose central values differ from standard model expectations. It is shown how such data can be used to identify new physics contributions in a model-independent manner. In general, a sizeable new amplitude with nontrivial weak and strong phases would be required to explain current data. Improvement in the quality of data will allow one to form a more definite conclusion.

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