Baryons in partially quenched chiral perturbation theory

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)xSU(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.