Quenched Chiral Perturbation Theory for Heavy Baryons

Details Quenched Chiral Perturbation Theory for Heavy Baryons Quenched Chiral Perturbation Theory for Heavy Baryons

1997-04-28

arxiv.org/abs/hep-ph/9704426v1

Phys.Rev. D57 (1998) 5586-5592

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 5 figures, uses REVTeX

Scientific paper

10.1103/PhysRevD.57.5586

Heavy baryon chiral perturbation theory is extended to include the effects of quenching. In this framework the leading nonanalytic dependence of the heavy baryon masses on the light quark masses is studied. The size of quenching effects is estimated by comparing the results of quenched and ordinary chiral perturbation theories. It is found that in general they can be large. This estimate is relevant to lattice simulations of the heavy baryon masses.

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