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Double charm decays of B-c meson in the perturbative QCD approach
Zhou R(周锐); Zou ZT(邹芝田); 吕才典;Rui, Z; Zou, ZT; Lu, CD
2012
发表期刊PHYSICAL REVIEW D
卷号86期号:7页码:74019
摘要We study the double charm decays of B-c meson, by employing the perturbative QCD approach based on k(T) factorization. In this approach, we include the nonfactorizable emission diagrams and W annihilation diagrams, which are neglected in the previous naive factorization approach. The former are important in the color-suppressed modes, while the latter are important in most B-c decay channels owing to the large Cabibbo-Kobayashi-Maskawa matrix elements. We make a comparison with those previous naive factorization results for the branching ratios and also give out the theoretical errors that were previously missed. We predict the transverse polarization fractions of B-c --> D-(s)*(+)(D) over bar*(0), D-(s)*D+*(0) decays for the first time. A large transverse polarization contribution that can reach 50%-60% is predicted in some of the B-c meson decays.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.86.074019
收录类别SCI
WOS记录号WOS:000309655900004
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224584
专题理论物理室
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GB/T 7714
Zhou R,Zou ZT,吕才典;Rui, Z,et al. Double charm decays of B-c meson in the perturbative QCD approach[J]. PHYSICAL REVIEW D,2012,86(7):74019.
APA 周锐,邹芝田,吕才典;Rui, Z,Zou, ZT,&Lu, CD.(2012).Double charm decays of B-c meson in the perturbative QCD approach.PHYSICAL REVIEW D,86(7),74019.
MLA 周锐,et al."Double charm decays of B-c meson in the perturbative QCD approach".PHYSICAL REVIEW D 86.7(2012):74019.
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