TY - JOUR
T1 - Glueball matrix elements on anisotropic lattices
AU - Chen, Y.
AU - Dong, S. J.
AU - Draper, T.
AU - Horváth, I.
AU - Lee, F. X.
AU - Mathur, N.
AU - Morningstar, C.
AU - Peardon, M.
AU - Young, B. L.
AU - Zhang, J. B.
PY - 2004/3
Y1 - 2004/3
N2 - 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.
AB - 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.
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U2 - 10.1016/S0920-5632(03)02530-1
DO - 10.1016/S0920-5632(03)02530-1
M3 - Article
AN - SCOPUS:7044277448
SN - 0920-5632
VL - 129-130
SP - 203
EP - 205
JO - Nuclear Physics B - Proceedings Supplements
JF - Nuclear Physics B - Proceedings Supplements
ER -