出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We discuss all-to-all propagators in the context of high statistical precision determinations of the
isovector and isoscalar meson spectrum. In particular we look at the method of Ref. [2] that
incorporates the low-lying eigenmodes and variance-reduced stochastic estimation. We find significant
low-lying eigenmode dependence of mass determinations, with the number of required
modes varying with the symmetry channel. We observe that the mass of a large number of traditionally
noisy symmetry channels can be determined to 5% statistical accuracy or higher in
light-light mesons.
