Reordering of Baryon Chiral Perturbation Theory

Details Reordering of Baryon Chiral Perturbation Theory Reordering of Baryon Chiral Perturbation Theory

1999-12-28

arxiv.org/abs/hep-ph/9912517v2

Phys.Lett. B476 (2000) 344-348

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, one reference added

Scientific paper

10.1016/S0370-2693(00)00168-4

Reordering of the chiral perturbation series, proposed recently by Becher and Leutwyler in the framework of SU(2) baryonic ChPT, is applied to the SU(3) case. This results in improved convergence of the chiral expansion of static properties of the lowest lying baryon octet, which in most cases is quite impressive. Finite renormalization of coupling constants and the role it plays in the interpretation of effective field theories is discussed. Some future tests of the viability of the scheme are proposed too.

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