ITP OpenIR  > 理论物理所2011年知识产出
Relativistic corrections to the exclusive decays of C-even bottomonia into S-wave charmonium pairs
Sang, WL; Rashidin, R; Kim, UR; Lee, J; Sang, WL (reprint author), Korea Univ, Dept Phys, Seoul 136701, South Korea.
2011
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号84期号:7页码:74026
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.
部门归属[Sang, Wen-Long; Kim, U-Rae; Lee, Jungil] Korea Univ, Dept Phys, Seoul 136701, South Korea; [Rashidin, Reyima] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China; [Rashidin, Reyima] Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China; [Lee, Jungil] KISTI, Taejon 305806, South Korea
关键词To-leading-order Root-s=10.6 Gev Annihilation Qcd
学科领域Physics
资助者NRF of Korea; MEST [2010-0028228]; Korea University; National Natural Science Foundation of China [10875130, 10935012] ; NRF of Korea; MEST [2010-0028228]; Korea University; National Natural Science Foundation of China [10875130, 10935012] ; NRF of Korea; MEST [2010-0028228]; Korea University; National Natural Science Foundation of China [10875130, 10935012] ; NRF of Korea; MEST [2010-0028228]; Korea University; National Natural Science Foundation of China [10875130, 10935012]
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收录类别SCI
语种英语
资助者NRF of Korea; MEST [2010-0028228]; Korea University; National Natural Science Foundation of China [10875130, 10935012] ; NRF of Korea; MEST [2010-0028228]; Korea University; National Natural Science Foundation of China [10875130, 10935012] ; NRF of Korea; MEST [2010-0028228]; Korea University; National Natural Science Foundation of China [10875130, 10935012] ; NRF of Korea; MEST [2010-0028228]; Korea University; National Natural Science Foundation of China [10875130, 10935012]
WOS记录号WOS:000296882400003
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14252
专题理论物理所2011年知识产出
通讯作者Sang, WL (reprint author), Korea Univ, Dept Phys, Seoul 136701, South Korea.
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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,&Sang, WL .(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.
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