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Lattice Study of Radiative J/psi Decay to a Tensor Glueball
CLQCD collaboration
2013
发表期刊PHYSICAL REVIEW LETTERS
卷号111期号:9
通讯作者Yang, YB (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
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.
关键词ANISOTROPIC LATTICES SEARCH MESON GEV/C
学科领域Physics
DOI10.1103/PhysRevLett.111.091601
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000323610800007
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213591
专题理论物理室
作者单位中国科学院高能物理研究所
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CLQCD collaboration. Lattice Study of Radiative J/psi Decay to a Tensor Glueball[J]. PHYSICAL REVIEW LETTERS,2013,111(9).
APA CLQCD collaboration.(2013).Lattice Study of Radiative J/psi Decay to a Tensor Glueball.PHYSICAL REVIEW LETTERS,111(9).
MLA CLQCD collaboration."Lattice Study of Radiative J/psi Decay to a Tensor Glueball".PHYSICAL REVIEW LETTERS 111.9(2013).
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