ITP OpenIR  > 理论物理所2015年知识产出
Relativistic corrections to Gamma exclusive decay into double S-wave charmonia
Sang, WL; Feng, F; Chen, YQ; Feng, F (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2015
发表期刊PHYSICAL REVIEW D
卷号92期号:1页码:14025
文章类型Article
摘要Within the framework of nonrelativisitic QCD factorization formalism, we present the next-to-leadingorder relativistic corrections to Gamma exclusive decay into eta(c) plus J/psi. The double charmonia can be produced through several immediate channels, i.e., Gamma -> g*g*g* -> eta(c) + J/psi, g*g*gamma* -> eta(c) + J/psi, and Gamma -> gamma* -> eta(c) + J/psi. The amplitudes of these three channels are obtained accurate up to O(alpha(3)(s)v(2)), O(alpha alpha(s)(2)v(2)), and O(alpha alpha(2)(s)v(2)), respectively, where v indicates the typical heavy quark velocity in bottomonium and/or charmonium rest frame. The decay rates are also presented. We find that the next-to-leading-order relativistic corrections to the short-distance coefficients as well as the decay rates are both significant and negative, especially for the corrections from bottomonium. More seriously, the decay rates are even brought into negative by including the relativistic corrections, which indicates the poor convergence for the velocity expansion in this kind of process. Detailed analysis is given in the paper.
学科领域Astronomy & Astrophysics ; Physics
资助者National Natural Science Foundation of China [11447031, 112755242] ; National Natural Science Foundation of China [11447031, 112755242] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics [Y4KF081CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics [Y4KF081CJ1] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Fundamental Research Funds for the Central Universities [SWU114003] ; Fundamental Research Funds for the Central Universities [SWU114003] ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China [11447031, 112755242] ; National Natural Science Foundation of China [11447031, 112755242] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics [Y4KF081CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics [Y4KF081CJ1] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Fundamental Research Funds for the Central Universities [SWU114003] ; Fundamental Research Funds for the Central Universities [SWU114003] ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
DOIhttp://dx.doi.org/10.1103/PhysRevD.92.014025
关键词[WOS]AMPLITUDES ; J/PSI
收录类别SCI
语种英语
资助者National Natural Science Foundation of China [11447031, 112755242] ; National Natural Science Foundation of China [11447031, 112755242] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics [Y4KF081CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics [Y4KF081CJ1] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Fundamental Research Funds for the Central Universities [SWU114003] ; Fundamental Research Funds for the Central Universities [SWU114003] ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China [11447031, 112755242] ; National Natural Science Foundation of China [11447031, 112755242] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics [Y4KF081CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics [Y4KF081CJ1] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Fundamental Research Funds for the Central Universities [SWU114003] ; Fundamental Research Funds for the Central Universities [SWU114003] ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20920
专题理论物理所2015年知识产出
通讯作者Feng, F (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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GB/T 7714
Sang, WL,Feng, F,Chen, YQ,et al. Relativistic corrections to Gamma exclusive decay into double S-wave charmonia[J]. PHYSICAL REVIEW D,2015,92(1):14025.
APA Sang, WL,Feng, F,Chen, YQ,&Feng, F .(2015).Relativistic corrections to Gamma exclusive decay into double S-wave charmonia.PHYSICAL REVIEW D,92(1),14025.
MLA Sang, WL,et al."Relativistic corrections to Gamma exclusive decay into double S-wave charmonia".PHYSICAL REVIEW D 92.1(2015):14025.
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