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Heavy to light baryon transition form factors
Guo XH(郭新恒); 黄涛(理); Li ZH(李作宏); Guo, XH; Huang, T; Li, ZH
1996
发表期刊PHYSICAL REVIEW D
卷号53期号:9页码:4946-4950
通讯作者ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA ; CCAST,WORLD LAB,BEIJING 100080,PEOPLES R CHINA
摘要Recently, Stech found form factor relations for heavy to light transitions based on two simple dynamical assumptions for a spectator particle. In this paper we generalize his approach to the case of baryons and find that for Lambda(Q) --> Lambda (Q = b or c) only one independent form factor remains in the limit m(Q) --> infinity. Furthermore, combining with the model of Guo and Kroll we determine both of the two form factors for Lambda(Q) --> Lambda in the heavy quark Limit. The results are applied to Lambda(b) --> Lambda + J/psi which is not clarified both theoretically and experimentally. It is found that the branching ratio of Lambda(b) --> Lambda + J/psi is of order 10(-5).
文章类型Article
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.53.4946
URL查看原文
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:A1996UJ48700025
引用统计
被引频次:6[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/311005/240003
专题理论物理室
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Guo XH,Huang T,Li ZH,et al. Heavy to light baryon transition form factors[J]. PHYSICAL REVIEW D,1996,53(9):4946-4950.
APA 郭新恒,黄涛,李作宏,Guo, XH,Huang, T,&Li, ZH.(1996).Heavy to light baryon transition form factors.PHYSICAL REVIEW D,53(9),4946-4950.
MLA 郭新恒,et al."Heavy to light baryon transition form factors".PHYSICAL REVIEW D 53.9(1996):4946-4950.
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