Baryons in Partially Quenched Chiral Perturbation Theory

Details Baryons in Partially Quenched Chiral Perturbation Theory Baryons in Partially Quenched Chiral Perturbation Theory

2001-11-26

arxiv.org/abs/hep-lat/0111050v1

Phys.Rev.D65:094001,2002

Physics

High Energy Physics

High Energy Physics - Lattice

24 pages, 3 figures

Scientific paper

10.1103/PhysRevD.65.094001

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.

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