Study of (Lambda)over-bar decay parameter in J/psi -> Lambda(Lambda)over-bar decay

	Study of (Lambda)over-bar decay parameter in J/psi -> Lambda(Lambda)over-bar decay
	Zhong B(钟彬); Ping RG(平荣刚); Zhong, B; Ping, RG; Xiao, ZJ
刊名	CHINESE PHYSICS C
	2008
卷号	32 期号:9 页码:692-696
关键词	parity asymmetry hyperon nonleptonic decays J/psi decays
通讯作者	[Zhong Bin ; Xiao Zhen-Jun] Nanjing Normal Univ, Dept Phys, Nanjing 210097, Peoples R China ; [Zhong Bin ; Xiao Zhen-Jun] Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210097, Peoples R China ; [Zhong Bin ; Ping Rong-Gang] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
英文摘要	The helicity amplitudes for J/psi -> Lambda(Lambda) over bar and the relevant background decays are presented for measuring the Lambda decay parameter alpha(+)((Lambda) over bar Lambda -> (p) over bar pi(+)) in J/psi -> Lambda(Lambda) over bar. The Monte Carlo (MC) simulations based on the helicity amplitudes information are carried out. The likelihood fit method to determine the (Lambda) over bar decay parameter is presented. Based on the MC generated sample, the sensitivity of the measurement for alpha(+) has been estimated, which shows that the J/psi Lambda(Lambda) over bar channel can be used to measure the (Lambda) over bar decay parameter alpha(+) ((Lambda) over bar -> (p) over bar pi(+)) well.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000259589200003
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/238284]
专题	高能物理研究所_实验物理中心
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	Zhong B,Ping RG,Zhong, B,et al. Study of (Lambda)over-bar decay parameter in J/psi -> Lambda(Lambda)over-bar decay[J]. CHINESE PHYSICS C,2008,32(9):692-696.
APA	钟彬,平荣刚,Zhong, B,Ping, RG,&Xiao, ZJ.(2008).Study of (Lambda)over-bar decay parameter in J/psi -> Lambda(Lambda)over-bar decay.CHINESE PHYSICS C,32(9),692-696.
MLA	钟彬,et al."Study of (Lambda)over-bar decay parameter in J/psi -> Lambda(Lambda)over-bar decay".CHINESE PHYSICS C 32.9(2008):692-696.