Glueball Matrix Elements on Anisotropic Lattices
High Energy Physics - Lattice
2008-11-26 v1
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 0.1fm -- 0.2fm. These matrix elements are needed to predict the glueball branching ratios in 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.
Cite
@article{arxiv.hep-lat/0310013,
title = {Glueball Matrix Elements on Anisotropic Lattices},
author = {Y. Chen and S. -J. Dong and T. Draper and I. Horvath and F. -X. Lee and N. Mathur and C. Morningstar and M. Peardon and S. Tamhankar and B. L. Young and J. -B. Zhang},
journal= {arXiv preprint arXiv:hep-lat/0310013},
year = {2008}
}
Comments
3 pages, 3 figures, Lattice2003 (spectrum)