A novel algorithm for computing quark propagators for lattice hadron   spectroscopy
  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. 
J. Bulava, J. Foley, Y.C. Jhang, K.J. Juge, D. Lenkner, M.J. Peardon,   C.J. Morningstar, C.H. Wong
hep-lat