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Final-state rescattering and SU(3) symmetry breaking in B -> DK and B -> DK* decays
Xing ZZ(邢志忠); Xing, ZZ
2003
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号28期号:1页码:#REF!
通讯作者Xing, ZZ (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
文章类型Article
摘要The first observation of the (B) over bar (0)(d) --> (DR0)-R-0 and (B) over bar (0)(d) --> D-0(K) over bar*(0) transitions by the Belle Collabd oration allows us to do a complete isospin analysis of the B --+ DK(*) decay modes. We find that their respective isospin phase shifts are very likely to lie in the ranges 37degrees less than or equal to (phi(1) - phi(0))DK less than or equal to 63degrees (or around 50degrees) and 25degrees less than or equal to (phi(1) - phi(0))DK* less than or equal to 50degrees (or around 35degrees), although the possibility (phi(1) - phi(0))DK = (phi(1) - phi(0))DK* = 0degrees cannot be ruled out at present. Thus significant final-state rescattering effects possibly exist in such exclusive \DeltaB\ = \DeltaC\ = \DeltaS\ = 1 processes. We determine the spectator and color-suppressed spectator quark-diagram amplitudes of the B --> DK and B DK* decays, and compare them with the corresponding quark-diagram amplitudes of the B --> Dpi and B --> Dp decays. The effects of SU(3) flavor symmetry breaking are in most cases understandable in the factorization approximation, which works for the individual isospin amplitudes. Very instructive predictions are also obtained for the branching fractions of rare (B) over bar (0)(d) (D) over bar (0) --> (K) over bar ((*)0), B-u(-) --> (D) over bar K-0((*)) and B-u(-) --> D-(K) over bar ((*)0) transitions.
学科领域Physics
DOI10.1140/epjc/s2003-01162-0
收录类别SCI
WOS类目Physics, Particles & Fields
WOS记录号WOS:000183398700006
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225857
专题理论物理室
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GB/T 7714
Xing ZZ,Xing, ZZ. Final-state rescattering and SU(3) symmetry breaking in B -> DK and B -> DK* decays[J]. EUROPEAN PHYSICAL JOURNAL C,2003,28(1):#REF!.
APA 邢志忠,&Xing, ZZ.(2003).Final-state rescattering and SU(3) symmetry breaking in B -> DK and B -> DK* decays.EUROPEAN PHYSICAL JOURNAL C,28(1),#REF!.
MLA 邢志忠,et al."Final-state rescattering and SU(3) symmetry breaking in B -> DK and B -> DK* decays".EUROPEAN PHYSICAL JOURNAL C 28.1(2003):#REF!.
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