NRQCD factorization for twist-2 light-cone wave-functions of charmonia
文献类型：期刊论文
| 作者 | Ma, J. P. ; Si, Z. G.; Si, ZG , Shandong Univ, Dept Phys, Jinan 250100, Shandong, Peoples R China
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| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2007 |
| 卷号 | 647期号:41035页码:419-426 |
| 关键词 | Heavy Quarkonium Distribution Amplitudes Gluon Fragmentation Exclusive Processes Quantum Chromodynamics Asymptotic-behavior Vector-mesons Qcd Distributions |
| ISSN号 | 0370-2693 |
| 英文摘要 | We show that the twist-2 light-cone wave-functions of eta(c) and J/psi can be factorized with nonrelativistic QCD (NRQCD) at the one-loop level, where the nonperturbative effects are represented by NRQCD matrix elements. In quarkonium at rest the c- or (c) over bar -quark moves with a small velocity v. The factorization is achieved by expanding the small velocity v. To the leading order of v, the twist-2 light-cone wave-functions of eta(c) and J/psi can be factorized as the product of a perturbative function and an NRQCD matrix element. The perturbative function is calculated at the one-loop level and is free from any soft divergences. Our results can be used for exclusive productions of quarkonia, which are studied in an experiment with two B-factories. (c) 2007 Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000246332800018 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5751]  |
| 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 | Si, ZG , Shandong Univ, Dept Phys, Jinan 250100, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, J. P.,Si, Z. G.,Si, ZG , Shandong Univ, Dept Phys, Jinan 250100, Shandong, Peoples R China. NRQCD factorization for twist-2 light-cone wave-functions of charmonia[J]. PHYSICS LETTERS B,2007,647(41035):419-426. |
| APA | Ma, J. P.,Si, Z. G.,&Si, ZG , Shandong Univ, Dept Phys, Jinan 250100, Shandong, Peoples R China.(2007).NRQCD factorization for twist-2 light-cone wave-functions of charmonia.PHYSICS LETTERS B,647(41035),419-426. |
| MLA | Ma, J. P.,et al."NRQCD factorization for twist-2 light-cone wave-functions of charmonia".PHYSICS LETTERS B 647.41035(2007):419-426. |
入库方式： OAI收割
来源：理论物理研究所
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