Glueball spectrum and matrix elements on anisotropic lattices
Glueball spectrum and matrix elements on anisotropic lattices
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 ranging from 0.1--0.2 fm. These matrix elements are needed to predict the glueball branching ratios in $J/\ensuremath{\psi}$ radiative decays which will help identify the …