Lattice study of two-photon decay widths for scalar and pseudo-scalar charmonium
文献类型：期刊论文
| 作者 | Chen, Ying; Gong, Ming; Li, Ning2; Liu, Chuan4,5; Li, Yu-Bin; Liu, Zhaofeng; Ma, Jian-Ping ; Meng, Yu; Xiong, Chao; Zhang, Ke-Long
|
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2020 |
| 卷号 | 44期号:8页码:83108 |
| 关键词 | TRANSITION FORM-FACTOR GAMMA-GAMMA-ASTERISK |
| ISSN号 | 1674-1137 |
| DOI | 10.1088/1674-1137/44/8/083108 |
| 英文摘要 | This exploratory study computes two-photon decay widths of pseudo-scalar (eta(c)) and scalar (chi(c0)) charmonium using two ensembles of N-f = 2 twisted mass lattice QCD gauge configurations. The simulation is performed using two lattice ensembles with lattice spacings a = 0.067 fm with size 32(3) x 64 and a = 0.085 fm with size 24(3) x 48. The decay widths for the two charmonia are obtained within the expected ballpark, but are however smaller than the experimental ones. Possible reasons for these discrepancies are discussed. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27378]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 3.Xian Technol Univ, Sch Sci, Xian 710032, Peoples R China 4.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 5.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China 6.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China 7.Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China 8.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Ying,Gong, Ming,Li, Ning,et al. Lattice study of two-photon decay widths for scalar and pseudo-scalar charmonium[J]. CHINESE PHYSICS C,2020,44(8):83108. |
| APA | Chen, Ying.,Gong, Ming.,Li, Ning.,Liu, Chuan.,Li, Yu-Bin.,...&Zhang, Ke-Long.(2020).Lattice study of two-photon decay widths for scalar and pseudo-scalar charmonium.CHINESE PHYSICS C,44(8),83108. |
| MLA | Chen, Ying,et al."Lattice study of two-photon decay widths for scalar and pseudo-scalar charmonium".CHINESE PHYSICS C 44.8(2020):83108. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。