Relativistic corrections to the exclusive decays of C-even bottomonia into S-wave charmonium pairs
文献类型：期刊论文
| 作者 | Sang, WL ; Rashidin, R ; Kim, UR ; Lee, J |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2011 |
| 卷号 | 84期号:7页码:74026 |
| 关键词 | TO-LEADING-ORDER ROOT-S=10.6 GEV ANNIHILATION QCD |
| ISSN号 | 1550-7998 |
| 通讯作者 | Sang, WL (reprint author), Korea Univ, Dept Phys, Seoul 136701, South Korea. |
| 英文摘要 | Within the nonrelativistic quantum chromodynamics (NRQCD) factorization formalism, we compute the relativistic corrections to the exclusive decays of bottomonia with even charge conjugation parity into S-wave charmonium pairs at leading order in the strong coupling constant. Relativistic corrections are resummed for a class of color-singlet contributions to all orders in the charm-quark velocity v(c) in the charmonium rest frame. Almost every process that we consider in this work has negative relativistic corrections ranging from -20 to -35%. Among the various processes, the relativistic corrections of the next-to-leading order in v(c) to the decay rate for chi(b2) -> eta(c)(mS) + eta(c)(nS) with m, n = 1 or 2 are very large. In every case, the resummation of the relativistic corrections enhances the rate in comparison with the next-to-leading-order results. We compare our results with available predictions based on the NRQCD factorization formalism. The NRQCD predictions are significantly smaller than those based on the light-cone formalism by 1 or 2 orders of magnitude. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | NRF of Korea; MEST [2010-0028228]; Korea University; National Natural Science Foundation of China [10875130, 10935012] |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevD.84.074026 |
| 语种 | 英语 |
| WOS记录号 | WOS:000296882400003 |
| 公开日期 | 2013-05-17 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/14252]  |
| 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 | Sang, WL,Rashidin, R,Kim, UR,et al. Relativistic corrections to the exclusive decays of C-even bottomonia into S-wave charmonium pairs[J]. PHYSICAL REVIEW D,2011,84(7):74026. |
| APA | Sang, WL,Rashidin, R,Kim, UR,&Lee, J.(2011).Relativistic corrections to the exclusive decays of C-even bottomonia into S-wave charmonium pairs.PHYSICAL REVIEW D,84(7),74026. |
| MLA | Sang, WL,et al."Relativistic corrections to the exclusive decays of C-even bottomonia into S-wave charmonium pairs".PHYSICAL REVIEW D 84.7(2011):74026. |
入库方式： OAI收割
来源：理论物理研究所
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