Color-singlet relativistic correction to inclusive J/psi production associated with light hadrons at B factories
文献类型：期刊论文
| 作者 | Jia, Yu; Jia, Y , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2010 |
| 卷号 | 82期号:3页码:- |
| 关键词 | Heavy Quarkonium Inelastic Photoproduction e(+)e(-) Annihilation J-psi Tevatron Decays States Fragmentation Colliders |
| ISSN号 | 1550-7998 |
| 英文摘要 | We study the first-order relativistic correction to the associated production of J/psi with light hadrons at B factory experiments at root s = 10.58 GeV, in the context of nonrelativistic QCD (NRQCD) factorization. We employ a strategy for NRQCD expansion that slightly deviates from the orthodox doctrine, in that the matching coefficients are not truly of a "short-distance'' nature, but explicitly depend upon physical kinematic variables rather than partonic ones. Our matching method, with validity guaranteed by the Gremm-Kapustin relation, is particularly suited for the inclusive quarkonium production and decay processes with involved kinematics, exemplified by the process e(+)e(-) -> J/psi + gg considered in this work. Despite some intrinsic ambiguity affiliated with the order-nu(2) NRQCD matrix element, if we choose its value as what has been extracted from a recent Cornell-potential-model-based analysis, including the relative order-nu(2) effect is found to increase the lowest-order prediction for the integrated J/psi cross section by about 30%, and exert a modest impact on J/psi energy, angular and polarization distributions except near the very upper end of the J/psi energy. The order-nu(2) contribution to the energy spectrum becomes logarithmically divergent at the maximum of J/psi energy. A consistent analysis may require that these large end-point logarithms be resummed to all orders in alpha(s). |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000280963800002 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5064]  |
| 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 | Jia, Y , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Yu,Jia, Y , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China. Color-singlet relativistic correction to inclusive J/psi production associated with light hadrons at B factories[J]. PHYSICAL REVIEW D,2010,82(3):-. |
| APA | Jia, Yu,&Jia, Y , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.(2010).Color-singlet relativistic correction to inclusive J/psi production associated with light hadrons at B factories.PHYSICAL REVIEW D,82(3),-. |
| MLA | Jia, Yu,et al."Color-singlet relativistic correction to inclusive J/psi production associated with light hadrons at B factories".PHYSICAL REVIEW D 82.3(2010):-. |
入库方式： OAI收割
来源：理论物理研究所
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