Chiral and continuum extrapolation of partially-quenched hadron masses
Conference
·
OSTI ID:850373
Using the finite-range regularization (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-analyze 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 ({approx}1%) with the experimental value of M{sub {rho}} from the former approach. These results are extended to the case of the nucleon mass.
- Research Organization:
- TJNAF (Thomas Jefferson National Accelerator Facility, Newport News, VA)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 850373
- Report Number(s):
- JLAB-THY-05-424; DOE/ER/40150-3600
- Country of Publication:
- United States
- Language:
- English
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