Abstract
The glueball-to-vacuum matrix elements of local gluonic operators in scalar, tensor, and pseudoscalar channels are investigated numerically on several anisotropic lattices with the spatial lattice spacing in the range 0.1 fm - 0.2 fm. These matrix elements are needed to predict the glueball branching ratios in J/ψ radiative decays which will help to identify the glueball states in experiments. Two types of improved local gluonic operators are constructed for a self-consistent check, and the finite volume effects are also studied. The lattice spacing dependence of our results is very small and the continuum limits are reliably extrapolated.
Original language | English |
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Pages (from-to) | 203-205 |
Number of pages | 3 |
Journal | Nuclear Physics B - Proceedings Supplements |
Volume | 129-130 |
DOIs | |
State | Published - Mar 2004 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics