Predictions for e(+)e(-) -> J/psi eta(c) with light-cone wave functions
文献类型：期刊论文
| 作者 | Si, ZG; Ma, JP ; Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2004 |
| 卷号 | 70期号:7页码:- |
| 关键词 | Twist Distribution Amplitudes Exclusive Processes Quantum Chromodynamics Vector-mesons Asymptotic-behavior Qcd Factorization Form-factors B-meson Annihilation Decays |
| ISSN号 | 0556-2821 |
| 英文摘要 | Predictions for e(+)e(-)-->J/psieta(c) from previous studies are made by taking charmonia as a nonrelativistic bound state and by using nonrelativistic QCD (NRQCD) approach. The predicted cross section is smaller by an order of magnitude than the experimentally observed cross section. We study the process by taking charm quark as a light quark and use light-cone wave functions to parameterize nonperturbative effects related to charmonia. The total cross section of e(+)e(-)-->J/psieta(c) can be predicted, if these wave functions are known. Motivated by studies of light-cone wave functions of light hadrons, we make a reasonable assumption of the forms of light-cone wave functions. With these light-cone wave functions we can obtain the cross section which is closer to the experimentally observed than that from the NRQCD approach. We also discuss in detail the difference between two approaches. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000224799600032 |
| 公开日期 | 2012-08-30 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13994]  |
| 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 | Si, ZG,Ma, JP,Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Predictions for e(+)e(-) -> J/psi eta(c) with light-cone wave functions[J]. PHYSICAL REVIEW D,2004,70(7):-. |
| APA | Si, ZG,Ma, JP,&Ma, JP , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2004).Predictions for e(+)e(-) -> J/psi eta(c) with light-cone wave functions.PHYSICAL REVIEW D,70(7),-. |
| MLA | Si, ZG,et al."Predictions for e(+)e(-) -> J/psi eta(c) with light-cone wave functions".PHYSICAL REVIEW D 70.7(2004):-. |
入库方式： OAI收割
来源：理论物理研究所
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