Study of asymmetry parameters of Lambda(+)(c) c decays in a tau-charm factory

	Study of asymmetry parameters of Lambda(+)(c) c decays in a tau-charm factory
	Liu J(刘杰); Ping RG(平荣刚); 李海波(实); Liu, J; Ping, RG; Li, HB
刊名	JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
	2015
卷号	42 期号:9 页码:95002
关键词	charm baryon Monte Carlo CP asymmetry parameters
通讯作者	平荣刚
英文摘要	An enhancement of cross section for e(+) e(-) -> Lambda(+)(c)(Lambda) over bar (-)(c) pair production near their threshold provides an opportunity to study the charm baryon Lambda(+)(c)/(Lambda) over bar (-)(c) at a tau-charm factory with e(+) e(-) collisions. We estimate the prospects of searching for the CP violation in the decays Lambda c+ -> Lambda(+)(pi) and (Lambda) over bar (-)(c) -> (Lambda) over bar (-)(pi). Helicity amplitude analysis shows that the asymmetry parameters, alpha(+)(Lambda c) and alpha((Lambda) over barc-), can be directly accessed by looking at the angular proton and antiproton distributions in their helicity systems. A Monte Carlo estimation shows that data with the integrated luminosity of 530 pb(-1) yields a statistical precision of about 25% for the CP asymmetry parameter A. To improve the precision to better than 0.1%, an integrated luminosity of at least 1800 fb(-1) of data is required.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
收录类别	SCI ; CA
WOS记录号	WOS:000361063700005
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228746]
专题	高能物理研究所_实验物理中心
推荐引用方式 GB/T 7714	Liu J,Ping RG,Li HB,et al. Study of asymmetry parameters of Lambda(+)(c) c decays in a tau-charm factory[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2015,42(9):95002.
APA	刘杰,平荣刚,李海波,Liu, J,Ping, RG,&Li, HB.(2015).Study of asymmetry parameters of Lambda(+)(c) c decays in a tau-charm factory.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,42(9),95002.
MLA	刘杰,et al."Study of asymmetry parameters of Lambda(+)(c) c decays in a tau-charm factory".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 42.9(2015):95002.