Indication for large rescatterings in charmless rare B decays

被引:30
作者
Chua, CK [1 ]
Hou, WS
Yang, KC
机构
[1] Natl Taiwan Univ, Dept Phys, Taipei 10764, Taiwan
[2] Chung Yuan Christian Univ, Dept Phys, Chungli 32023, Taiwan
关键词
flavor symmetries; decays of bottom mesons; rescattering;
D O I
10.1142/S0217732303011551
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The current wealth of charmless B decay data may suggest the presence of final state rescattering. In a factorized amplitude approach, better fits are found by incorporating two SU(3) rescattering phase differences, giving delta similar to 65degrees and sigma similar to 90degrees -100degrees. Fitting with unitarity phase phi(3) as a fit parameter gives phi(3) similar to 96degrees, the CP asymmetries A(pipi), S-pipi agree better with BaBar, and the sigma phase is slightly lower. Keeping phi(3) = 60degrees fixed in fit gives S-pipi similar to -0.9, which agrees better with Belle. With the sizable delta, sigma rescattering phases as fitted, many direct CP asymmetries flip sign, and B-0 --> pi(0)pi(0), K-K+ rates are of order 10(-6), which can be tested soon.
引用
收藏
页码:1763 / 1772
页数:10
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