Nucleon properties at finite lattice spacing in chiral perturbation theory
Abstract
Properties of the proton and neutron are studied in partially quenched chiral perturbation theory at finite lattice spacing. Masses, magnetic moments, the matrix elements of isovector twist-2 operators and axial-vector currents are examined at the one-loop level in a double expansion in the light-quark masses and the lattice spacing. This work will be useful in extrapolating the results of simulations using Wilson valence and sea quarks, as well as simulations using Wilson sea quarks and Ginsparg-Wilson valence quarks, to the continuum.
- Publication:
-
Physical Review D
- Pub Date:
- December 2003
- DOI:
- 10.1103/PhysRevD.68.114502
- arXiv:
- arXiv:hep-lat/0306036
- Bibcode:
- 2003PhRvD..68k4502B
- Keywords:
-
- 12.38.Gc;
- 12.39.Fe;
- 14.20.Dh;
- Lattice QCD calculations;
- Chiral Lagrangians;
- Protons and neutrons;
- High Energy Physics - Lattice;
- High Energy Physics - Phenomenology;
- Nuclear Theory
- E-Print:
- 16 pages LaTeX