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Sang, WL; Rashidin, R; Kim, UR; Lee, J; Sang, WL (reprint author), Korea Univ, Dept Phys, Seoul 136701, South Korea.
Relativistic corrections to the exclusive decays of C-even bottomonia into S-wave charmonium pairs
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordTo-leading-order Root-s=10.6 Gev Annihilation Qcd
AbstractWithin 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.
2011
ISSN1550-7998
Volume84Issue:7Pages:74026
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNRF 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]
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14252
Collection理论物理所科研产出_SCI论文
Corresponding AuthorSang, WL (reprint author), Korea Univ, Dept Phys, Seoul 136701, South Korea.
Recommended Citation
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,&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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