Baryons in Partially Quenched Chiral Perturbation Theory
High Energy Physics - Lattice
2008-11-26 v1 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
We include the lowest-lying octet- and decuplet-baryons into partially quenched chiral perturbation theory. Perturbing about the chiral limit of the graded SU(6|3)_L x SU(6|3)_R flavor group of partially quenched QCD, we compute the leading one-loop contributions to the octet-baryon masses, magnetic moments and matrix elements of isovector twist-2 operators. We work in the isospin limit and keep two of the three sea quarks degenerate. The usefulness of the non-unique extension of the electric charge matrix and the isovector twist-2 operators from QCD to partially quenched QCD is discussed.
Keywords
Cite
@article{arxiv.hep-lat/0111050,
title = {Baryons in Partially Quenched Chiral Perturbation Theory},
author = {Jiunn-Wei Chen and Martin J. Savage},
journal= {arXiv preprint arXiv:hep-lat/0111050},
year = {2008}
}
Comments
24 pages, 3 figures