Relativistic corrections to the semi-inclusive decay of psi and gamma
文献类型：期刊论文
| 作者 | Chen, YQ
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2012 |
| 卷号 | 85期号:3页码:34017 |
| 关键词 | QUARKONIUM DECAY HEAVY QUARKONIUM ANNIHILATION UPSILON QUARKS QCD |
| ISSN号 | 1550-7998 |
| 通讯作者 | Chen, HT (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China. |
| 英文摘要 | In the framework of the nonrelativistic quantum chromodynamics factorization formalism, we study the processes of psi (nS) and gamma (nS) decay into a lepton pair or a charm pair associated with two jets up to the next-to-leading order in velocity expansion. We present the analytic expressions for the differential decay rate to the invariant mass of the lepton pair or charm pair. We find that the ratio of the next-to-leading order short-distance coefficient to the leading order one is in the range from -5: 5 to -12:4. The relativistic corrections are so large that they modify the leading order prediction significantly. Utilizing the analytic expressions, we also investigate the relativistic corrections in different kinematic regions and their dependence on the masses of the initial-state quarkonium and the final-state fermion. In addition, we study the momentum distribution of D*+ in the process gamma(1S) -> c (c) over bar gg -> D*+X. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | NSFC [10875156]; National Natural Science Foundation of China [10875130, 10935012]; NRF of Korea; MEST [2011-0003023] |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevD.85.034017 |
| 语种 | 英语 |
| WOS记录号 | WOS:000300094600002 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15162]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Chen, YQ. Relativistic corrections to the semi-inclusive decay of psi and gamma[J]. PHYSICAL REVIEW D,2012,85(3):34017. |
| APA | Chen, YQ.(2012).Relativistic corrections to the semi-inclusive decay of psi and gamma.PHYSICAL REVIEW D,85(3),34017. |
| MLA | Chen, YQ."Relativistic corrections to the semi-inclusive decay of psi and gamma".PHYSICAL REVIEW D 85.3(2012):34017. |
入库方式： OAI收割
来源：理论物理研究所
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