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题名: (Beta)over-bar(0)->pi X+ in the standard model
作者: He, XG ;  Kao, CP ;  Ma, JP ;  Pakvasa, S
刊名: PHYSICAL REVIEW D
出版日期: 2002
卷号: 66, 期号:9, 页码:-
关键词: IMPROVED FACTORIZATION APPROACH ;  DIRECT CP VIOLATION ;  HADRONIC B-DECAYS ;  HEAVY-QUARK LIMIT ;  WEAK PHASE-GAMMA ;  B->K-PI DECAYS ;  QCD FACTORIZATION ;  PERTURBATIVE QCD ;  ELECTROWEAK PENGUINS ;  BRANCHING RATIO
学科分类: Physics
通讯作者: He, XG , Natl Taiwan Univ, Dept Phys, Taipei 10764, Taiwan.
部门归属: Natl Taiwan Univ, Dept Phys, Taipei 10764, Taiwan; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA
英文摘要: We investigate the possibility of studying the B-->pi form factor using the semi-inclusive decays (B) over bar (0)-->pi(+)+X-q. In general, B-->PX semi-inclusive decays involve several hadronic parameters. However, for (B) over bar (0)-->pi(+)X(q) decays, we find that in the factorization approximation, the only unknown hadronic parameters are the form factors F-0,1(B-->pi). Therefore, these form factors can be studied in (B) over bar (0)-->pi(+)X(q) decays. Using theoretical model calculations for the form factors, the branching ratios for (B) over bar (0)-->pi(+)X(d)(DeltaS=0) and (B) over bar (0)-->pi(+)X(s)(DeltaS=-1), with E-pi>2.1 GeV, are estimated to be in the ranges of (3.1-4.9)x10(-5)[F-1(B-->pi)(0)/0.33](2) and (2.5-4.2)x10(-5)[F-1(B-->pi)(0)/0.33](2), respectively, depending on the value of the CP-violating phase gamma. The combined branching ratio for (B) over bar (0)-->pi(+)(X-d+X-s) is about 7.4x10(-5)[F(1)(B-->)pi(0)/0.33](2) and is insensitive to gamma. We also discuss CP asymmetries in these decay modes.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000179679400075
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13409
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
He, XG,Kao, CP,Ma, JP,et al. (Beta)over-bar(0)->pi X+ in the standard model[J]. PHYSICAL REVIEW D,2002,66(9):-.
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