Baryon Masses in Chiral Perturbation Theory with Infrared Regularization
P. J. Ellis, K. Torikoshi
Abstract
The baryon masses are examined in SU(3) chiral perturbation theory to third order using the recently proposed infrared regularization scheme. Fourth order is estimated by evaluating the dominant diagram. With this regularization the magnitude of the loop integrals is reduced so that the convergence of the series appears to be better than in the heavy baryon approach.
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