Flavor SU(3) analysis of charmless B meson decays to two pseudoscalar mesons

被引：0
|
作者：
Chiang, Cheng-Wei [1 ]
Zhou, Yu-Feng
机构：
[1] Natl Cent Univ, Dept Phys, Chungli 320, Taiwan
[2] Acad Sinica, Inst Phys, Taipei 115, Taiwan
[3] KEK, Theory Grp, Tsukuba, Ibaraki 3050801, Japan
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2006年 / 12期
关键词：
standard model; rare decays; weak decays; B-Physics;
D O I：
暂无
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Global fits to charmless B -> PP decays in the framework of flavor SU(3) symmetry are updated and improved without reference to the sin2 beta measured from the charmonium decay modes. Fit results directly constrain the ((rho) over bar, (eta) over bar) vertex of the unitarity triangle, and are used to predict the branching ratios and CP asymmetries of all decay modes, including those of the Bs system. Differerent schemes of SU( 3) breaking in decay amplitude sizes are analyzed. The major breaking effect between strangeness-conserving and strangeness-changing decays can be accounted for by including a ratio of decay constants in tree and color-suppressed amplitudes. The possibility of having a new physics contribution to K decays is also examined from the data fitting point of view.
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页数：22
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