ITP OpenIR  > SCI期刊论文
Chen, Ying; Gong, Ming; Li, Ning2; Liu, Chuan4,5; Li, Yu-Bin; Liu, Zhaofeng; Ma, Jian-Ping; Meng, Yu; Xiong, Chao; Zhang, Ke-Long
Lattice study of two-photon decay widths for scalar and pseudo-scalar charmonium
Source PublicationCHINESE PHYSICS C
Language英语
KeywordTRANSITION FORM-FACTOR GAMMA-GAMMA-ASTERISK
AbstractThis 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.
2020
ISSN1674-1137
Volume44Issue:8Pages:83108
Cooperation Status国内
Subject AreaPhysics
MOST Discipline CataloguePhysics, Nuclear ; Physics, Particles & Fields
DOI10.1088/1674-1137/44/8/083108
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27378
CollectionSCI期刊论文
Affiliation1.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
Recommended Citation
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.
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