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	Relativistic corrections for polarized J/psi production in b decay
	Ma, JP; Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
刊名	PHYSICAL REVIEW D
	2000
卷号	62期号:5页码:-
关键词	Octet Quarkonia Production Matrix-elements Qcd Analysis Charmonium Tevatron
ISSN号	0556-2821
英文摘要	We analyze the structure of relativistic corrections in the inclusive production of polarized J/psi from b-quark decay. The analysis is performed not only for the production channel in which the c (c) over bar pair is a color singlet, but also for the channels in which the c (c) over bar is a color octet. We find that the correction in the color-singlet channel at tree level is completely determined by the decay constant of J/psi, while in the color-octet channels the corrections are characterized by three matrix elements defined in NRQCD, whose numerical values are unknown. We discuss the impact of these corrections on polarized J/psi production, and the impact is so significant that the predictions based on the analysis for the considered process may be unreliable. Finally, we propose an integrated spin observable to measure the polarization of J/psi.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000089022500038
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/12916]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Ma, JP,Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Relativistic corrections for polarized J/psi production in b decay[J]. PHYSICAL REVIEW D,2000,62(5):-.
APA	Ma, JP,&Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2000).Relativistic corrections for polarized J/psi production in b decay.PHYSICAL REVIEW D,62(5),-.
MLA	Ma, JP,et al."Relativistic corrections for polarized J/psi production in b decay".PHYSICAL REVIEW D 62.5(2000):-.

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