ITP OpenIR  > 理论物理所科研产出  > SCI论文
Feng, F; Jia, Y; Sang, WL; Feng, F (reprint author), China Univ Min & Technol, Beijing 100083, Peoples R China.
Can Nonrelativistic QCD Explain the gamma gamma* -> eta(c) Transition Form Factor Data?
发表期刊PHYSICAL REVIEW LETTERS
语种英语
摘要Unlike the bewildering situation in the gamma gamma* -> pi form factor, a widespread view is that perturbative QCDcan decently account for the recentBABAR measurement of the gamma gamma* ->eta(c) transition formfactor. The nextto- next-to-leading-order perturbative correction to the gamma gamma* ->eta(c,b) form factor, is investigated in the nonrelativistic QCD (NRQCD) factorization framework for the first time. As a byproduct, we obtain, by far, the most precise order-alpha(2)(s) NRQCD matching coefficient for the eta(c,b) -> gamma gamma process. After including the substantial negative order-alpha(2)(s) correction, the good agreement between NRQCD prediction and the measured gamma gamma* ->eta(c) form factor is completely ruined over a wide range of momentum transfer squared. This eminent discrepancy casts some doubts on the applicability of the NRQCD approach to hard exclusive reactions involving charmonium.
2015
卷号115期号:22页码:222001
学科领域Physics
DOIhttp://dx.doi.org/10.1103/PhysRevLett.115.222001
收录类别SCI
项目资助者National Natural Science Foundation of China [11505285, 11447031] ; National Natural Science Foundation of China [11505285, 11447031] ; National Natural Science Foundation of China [11505285, 11447031] ; National Natural Science Foundation of China [11505285, 11447031] ; Fundamental Research Funds for the Central Universities [SWU114003, XDJK2016C067] ; Fundamental Research Funds for the Central Universities [SWU114003, XDJK2016C067] ; Fundamental Research Funds for the Central Universities [SWU114003, XDJK2016C067] ; Fundamental Research Funds for the Central Universities [SWU114003, XDJK2016C067] ; National Natural Science Foundation of China (DGF and NSFC) [11475188, 11261130311, CRC110] ; National Natural Science Foundation of China (DGF and NSFC) [11475188, 11261130311, CRC110] ; National Natural Science Foundation of China (DGF and NSFC) [11475188, 11261130311, CRC110] ; National Natural Science Foundation of China (DGF and NSFC) [11475188, 11261130311, CRC110] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; Open Project Program of State Key Laboratory of Theoretical Physics [Y4KF081CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics [Y4KF081CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics [Y4KF081CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics [Y4KF081CJ1]
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20783
专题理论物理所科研产出_SCI论文
通讯作者Feng, F (reprint author), China Univ Min & Technol, Beijing 100083, Peoples R China.
推荐引用方式
GB/T 7714
Feng, F,Jia, Y,Sang, WL,et al. Can Nonrelativistic QCD Explain the gamma gamma* -> eta(c) Transition Form Factor Data?[J]. PHYSICAL REVIEW LETTERS,2015,115(22):222001.
APA Feng, F,Jia, Y,Sang, WL,&Feng, F .(2015).Can Nonrelativistic QCD Explain the gamma gamma* -> eta(c) Transition Form Factor Data?.PHYSICAL REVIEW LETTERS,115(22),222001.
MLA Feng, F,et al."Can Nonrelativistic QCD Explain the gamma gamma* -> eta(c) Transition Form Factor Data?".PHYSICAL REVIEW LETTERS 115.22(2015):222001.
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