出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:Using the finite-range regularisation (FRR) of chiral effective field theory, the chiral extrapolation
formula for the vector meson mass is derived for the case of partially-quenched QCD. We
re-analyse the dynamical fermion QCD data for the vector meson mass from the CP-PACS collaboration.
A global fit, including finite lattice spacing effects, of all 16 of their ensembles is
performed. We study the FRR method together with a naive polynomial approach and find excellent
agreement (
1%) with the experimental value of Mr from the former approach. These
results are extended to the case of the nucleon mass.