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题名: Radiative transitions in charmonium from N-f=2 twisted mass lattice QCD
作者: Chen, Y ;  Du, DC ;  Guo, BZ ;  Li, N ;  Liu, C ;  Liu, H ;  Liu, YB ;  Ma, JP ;  Meng, XF ;  Niu, ZY ;  Zhang, JB
刊名: PHYSICAL REVIEW D
出版日期: 2011
卷号: 84, 期号:3, 页码:34503
关键词: PION FORM-FACTOR ;  LIGHT QUARKS ;  FERMIONS
学科分类: Physics
通讯作者: Liu, C (reprint author), Peking Univ, Sch Phys, Beijing 100871, Peoples R China.
部门归属: [Liu, Chuan] Peking Univ, Sch Phys, Beijing 100871, Peoples R China; [Liu, Chuan] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China; [Chen, Ying] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China; [Du, De-Chuan; Guo, Bao-Zhong; Li, Ning; Liu, Hang; Liu, Yu-Bin; Niu, Zhi-Yuan] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China; [Ma, Jian-Ping] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; [Meng, Xiang-Fei] Natl Supercomp Ctr, Tianjin 300457, Peoples R China; [Zhang, Jian-Bo] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China
英文摘要: We present an exploratory study for charmonium radiative transitions: J/psi -> eta(c)gamma, chi(c0) -> J/Psi gamma, and h(c) -> eta(c)gamma using Nf = 2 twisted-mass lattice QCD gauge configurations. The single-quark vector form factors for eta(c) and chi(c0) are also determined. The simulation is performed at a lattice spacing of a = 0.067(2) fm and the lattice size is 32(3) x 64 with a pion mass of about 485 MeV. After extrapolation of lattice data at nonzero Q(2) to 0, we compare our results with previous quenched lattice results and the available experimental values.
资助者: National Science Foundation of Chian (NSFC) [10835002, 11021092, 10675101, 11075167, 10975076]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000294135400008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14288
Appears in Collections:理论物理所2011年知识产出_期刊论文

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Recommended Citation:
Chen, Y,Du, DC,Guo, BZ,et al. Radiative transitions in charmonium from N-f=2 twisted mass lattice QCD[J]. PHYSICAL REVIEW D,2011,84(3):34503.
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