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题名: Lattice Study of Radiative J/psi Decay to a Tensor Glueball
作者: Yang, YB ;  Gui, LC ;  Chen, Y ;  Liu, C ;  Liu, YB ;  Ma, JP ;  Zhang, JB
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2013
卷号: 111, 期号:9, 页码:91601
关键词: ANISOTROPIC LATTICES ;  SEARCH ;  MESON ;  GEV/C
学科分类: Physics
通讯作者: Yang, YB (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
部门归属: [Yang, Yi-Bo; Gui, Long-Cheng; Chen, Ying] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China; [Yang, Yi-Bo; Gui, Long-Cheng; Chen, Ying] Chinese Acad Sci, Theoret Ctr Sci Facil, Beijing 100049, Peoples R China; [Liu, Chuan] Peking Univ, Sch Phys, Beijing 100871, Peoples R China; [Liu, Chuan] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China; [Liu, Yu-Bin] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China; [Ma, Jian-Ping] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Zhang, Jian-Bo] Zhejiang Univ, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China
英文摘要: The radiative decay of J/psi into a pure gauge tensor glueball is studied in the quenched lattice QCD formalism. With two anisotropic lattices, the multipole amplitudes E-1(0), M-2(0), and E-3(0) are obtained to be 0.114(12)(6) GeV, -0.011(5)(1) GeV, and 0.023(8)(1) GeV, respectively. The first error comes from the statistics, the Q(2) interpolation, and the continuum extrapolation, while the second is due to the uncertainty of the scale parameter r(0)(-1) = 410(20) MeV. Thus, the partial decay width Gamma(J/psi -> gamma G(2++)) is estimated to be 1.01(22)(10) keV, which corresponds to a large branch ratio 1.1(2)(1) x 10(-2). The phenomenological implication of this result is also discussed.
资助者: National Science Foundation of China (NSFC) [10835002, 11075167, 11021092, 11275169, 10975076]; NSFC; DFG [CRC110]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000323610800007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15293
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Yang, YB,Gui, LC,Chen, Y,et al. Lattice Study of Radiative J/psi Decay to a Tensor Glueball[J]. PHYSICAL REVIEW LETTERS,2013,111(9):91601.
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