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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
发表期刊PHYSICAL REVIEW D
关键词Octet Quarkonia Production Matrix-elements Qcd Analysis Charmonium Tevatron
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.
2000
ISSN0556-2821
卷号62期号:5页码:-
学科领域Physics
收录类别SCI
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12916
专题理论物理所科研产出_SCI论文
通讯作者Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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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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