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题名: Lambda b ->Sigma((*))(c) pi l(nu)over-bar in the heavy quark, chiral, and large N-c limits
作者: Lee, JP ;  Liu, C ;  Song, HS
刊名: PHYSICAL REVIEW D
出版日期: 2000
卷号: 61, 期号:1, 页码:-
关键词: WEAK FORM-FACTORS ;  PERTURBATION-THEORY ;  SYMMETRY ;  DECAYS ;  PREDICTIONS ;  QCD ;  UNIVERSALITY ;  HADRONS ;  BARYONS
学科分类: Physics
通讯作者: Lee, JP , Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea.
部门归属: Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea; Seoul Natl Univ, Ctr Theoret Phys, Seoul 151742, South Korea; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Korea Inst Adv Study, Seoul 130012, South Korea
英文摘要: The decay of Lambda(b) --> Sigma(c)((*)) pi/<(nu)over bar> processes is calculated in the framework of heavy baryon chiral perturbation theory with the help of the 1/N-c expansion. The decay rate distributions over nu . nu' where nu and nu' are the four-vector velocities of Lambda(b) and Sigma(c)((*)), respectively, and over the pion and lepton energies, are given. The decay branching ratios amount to about 1.21(0.971)% for Lambda(b)-->Sigma(c) pi/<(nu)over bar> and 0.798(0.640)% for Lambda(b)-->Sigma(c)* pi/<(nu)over bar> by using the baryonic Isgur-Wise function predicted by QCD sum rules (large N-c QCD).
收录类别: SCI
WOS记录号: WOS:000084674200022
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13047
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:
Lee, JP,Liu, C,Song, HS. Lambda b ->Sigma((*))(c) pi l(nu)over-bar in the heavy quark, chiral, and large N-c limits[J]. PHYSICAL REVIEW D,2000,61(1):-.
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