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Lambda b ->Sigma((*))(c) pi l(nu)over-bar in the heavy quark, chiral, and large N-c limits
Lee, JP; Liu, C; Song, HS; Lee, JP , Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea.
2000
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号61期号:1页码:-
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).
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
关键词Weak Form-factors Perturbation-theory Symmetry Decays Predictions Qcd Universality Hadrons Baryons
学科领域Physics
收录类别SCI
WOS记录号WOS:000084674200022
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13047
专题理论物理所SCI论文
通讯作者Lee, JP , Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea.
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Lee, JP,Liu, C,Song, HS,et al. 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):-.
APA Lee, JP,Liu, C,Song, HS,&Lee, JP , Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea..(2000).Lambda b ->Sigma((*))(c) pi l(nu)over-bar in the heavy quark, chiral, and large N-c limits.PHYSICAL REVIEW D,61(1),-.
MLA Lee, JP,et al."Lambda b ->Sigma((*))(c) pi l(nu)over-bar in the heavy quark, chiral, and large N-c limits".PHYSICAL REVIEW D 61.1(2000):-.
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