Improved interpolating fields for hadrons at non-zero momentum
arXiv:1208.0189 · doi:10.1140/epja/i2012-12139-9
Abstract
We generalize Gaussian/Wuppertal smearing in order to produce non-spherical wave functions. We show that we can achieve a reduction in the noise-to-signal ratio for correlation functions of certain hadrons at non-zero momentum, while at the same time preserving a good projection on the ground state.
10 pages, 7 figures. Version accepted for publication in EPJ A