arXiv:1109.6614·v1·High Energy Physics — Lattice
A novel algorithm for computing quark propagators for lattice hadron spectroscopy
J. Bulava🇩🇪 · J. Foley🇺🇸 · Y.C. Jhang🇺🇸 · K.J. Juge🇺🇸 · D. Lenkner🇺🇸 · M.J. Peardon🇮🇪 · C.J. Morningstar🇺🇸 · C.H. Wong🇺🇸
Abstract
We report on our progress in computing the excitation spectrum in Lattice QCD. We focus on the isospin 0, 1 and 2 channels using the stochastic LapH algorithm for the quark propagators. For the isospin-0 channel, a new glueball operator constructed from the stochastic LapH operator is included in the variational basis along with the isoscalar meson and pi-pi operators. A representative signal for each channel is presented and the feasibility of extending the calculations to larger lattices is discussed.
Comments: 6 pages, 4 figures. Prepared for the proceedings of DPF 2011