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O(alpha(s)v(2)) correction to e(+)e(-) -> J/psi + eta(c) at B factories
Dong HR(董海荣); Dong, HR; Feng, F; Jia, Y;贾宇
2012
发表期刊PHYSICAL REVIEW D
卷号85期号:11页码:114018
摘要We investigate the O(alpha(s)v(2)) correction to the e(+)e(-) -> J/psi + eta(c) process in the nonrelativistic QCD ( NRQCD) factorization approach. Within some reasonable choices of the relative order-v(2) NRQCD matrix elements, we find that including this new ingredient of correction only mildly enhances the existing NRQCD predictions. We have also deduced the asymptotic expressions for the O(alpha(s)v(2)) short-distance coefficients, and reconfirm the early speculation that at next-to-leading order in alpha(s), the double logarithm of type ln(2)(s/m(c)(2)) appearing in various NRQCD short-distance coefficients is always associated with the helicity-suppressed channels.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.85.114018
收录类别SCI
WOS记录号WOS:000305090700004
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被引频次:19[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224631
专题理论物理室
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Dong HR,Dong, HR,Feng, F,et al. O(alpha(s)v(2)) correction to e(+)e(-) -> J/psi + eta(c) at B factories[J]. PHYSICAL REVIEW D,2012,85(11):114018.
APA 董海荣,Dong, HR,Feng, F,&Jia, Y;贾宇.(2012).O(alpha(s)v(2)) correction to e(+)e(-) -> J/psi + eta(c) at B factories.PHYSICAL REVIEW D,85(11),114018.
MLA 董海荣,et al."O(alpha(s)v(2)) correction to e(+)e(-) -> J/psi + eta(c) at B factories".PHYSICAL REVIEW D 85.11(2012):114018.
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