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题名: Relativistic corrections for polarized J/psi production in b decay
作者: Ma, JP
刊名: PHYSICAL REVIEW D
出版日期: 2000
卷号: 62, 期号:5, 页码:-
关键词: OCTET QUARKONIA PRODUCTION ;  MATRIX-ELEMENTS ;  QCD ANALYSIS ;  CHARMONIUM ;  TEVATRON
学科分类: Physics
通讯作者: Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000089022500038
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12916
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Ma, JP. Relativistic corrections for polarized J/psi production in b decay[J]. PHYSICAL REVIEW D,2000,62(5):-.
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