Baryons in Partially Quenched Chiral Perturbation 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.

24 pages, 3 figures

References in corpus (6)

• Partially quenched chiral perturbation theory without ${\Phi }_0$
• Chiral extrapolation of lattice moments of proton quark distributions
• Chiral Corrections to Matrix Elements of Twist-2 Operators
• Leading Chiral Contributions to the Spin Structure of the Proton
• Effects of Quenching and Partial Quenching on Penguin Matrix Elements
• Constructing Parton Convolution in Effective Field Theory

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