Lattice Study of Radiative J/psi Decay to a Tensor Glueball

	Lattice Study of Radiative J/psi Decay to a Tensor Glueball
	CLQCD collaboration
刊名	PHYSICAL REVIEW LETTERS
	2013
卷号	111 期号:9
关键词	ANISOTROPIC LATTICES SEARCH MESON GEV/C
通讯作者	Yang, YB (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, 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.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
收录类别	SCI
语种	英语
WOS记录号	WOS:000323610800007
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213591]
专题	高能物理研究所_理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	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).