Goldberger-Treiman constraint criteria for hyperon coupling constants

I. J. GENERAL; S. R. COTANCH

PHYS. REV. - C

AMER PHYSICAL SOC

Lugar: New York; Año: 2004 p. 35202 - 35207

0556-2813

The generalized Goldberger-Treiman relation is combined with the Dashen-Weinstein sum rule to provide aconstraint equation between the g_KSN and g_KLN coupling constants. A comprehensive examination of thepublished phenomenological and theoretical hyperon couplings has yielded a much smaller set of values,spanning the intervals 0.80 <= g_KSN/SQRT(4pi) <= 2.72 and −3.90 <= g_KLN/SQRT(4pi) <= −1.84, consistent with this criterion.The broken SU_F(3) and Goldberger-Treiman hyperon couplings satisfy the constraint along with predictionsfrom a Taylor series extrapolation using the same momentum variation as exhibited by g_PNN.