Knowledge Management System of Institute of Theoretical Physics, CAS
| 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? | |
| Source Publication | PHYSICAL REVIEW LETTERS
 |
| Language | 英语 |
| Abstract | 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 | |
| Volume | 115Issue:22Pages:222001 |
| Subject Area | Physics |
| DOI | http://dx.doi.org/10.1103/PhysRevLett.115.222001 |
| Indexed By | SCI |
| Funding Organization | 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] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/20783 |
| Collection | SCI期刊论文 |
| Corresponding Author | Feng, F (reprint author), China Univ Min & Technol, Beijing 100083, Peoples R China. |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Can Nonrelativistic （212KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment