期刊
PHYSICAL REVIEW D
卷 78, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.78.014020
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资金
- National Science Council of R. O. C [NSC-95-2112-M-050-MY3]
- National Center for Theoretical Sciences of R. O. C
We show that the few-percent Okubo-Zweig-Iizuka-rule violating effects in the quark-flavor basis for the eta-eta(') mixing can enhance the chiral scale associated with the eta(q) meson a few times. This enhancement is sufficient for accommodating the dramatically different data of the B ->eta K-' and B ->eta K branching ratios. We comment on other proposals for resolving this problem, including flavor-singlet contributions, axial U(1) anomaly, and nonperturbative charming penguins. Discrimination of the above proposals by means of the B ->eta(('))center dot nu and B-s ->eta(('))center dot center dot data is suggested.
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