出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Calculations using staggered quarks augmented with a root of the fermion determinant to reduce
doubling give a qualitatively incorrect behavior in the small quark mass region. Attempts to
circumvent this problem for the continuum limit involve an unproven combination of unphysical
states, a loss of unitarity, and a rather peculiar non-commutation of limits.
