出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Extraction of the mass spectrum from twisted mass lattice QCD is facilitated by respecting the
octahedral group of rotations and accommodating the broken parity and avor symmetries of the
theory. In this work, group theory meson operators adapted to these constraints are constructed
for the special case of quark and antiquark elds at a common lattice site, connected by extended
gauge eld paths.
