Reordering of baryon chiral perturbation theory

Citation
M. Mojzis et J. Kambor, Reordering of baryon chiral perturbation theory, PHYS LETT B, 476(3-4), 2000, pp. 344-348
Citations number
19
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
476
Issue
3-4
Year of publication
2000
Pages
344 - 348
Database
ISI
SICI code
0370-2693(20000316)476:3-4<344:ROBCPT>2.0.ZU;2-8
Abstract
Reordering of the chiral perturbation series, proposed recently by Becher a nd 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 st atic properties of the lowest lying baryon octet, which in most cases is qu ite impressive. Finite renormalization of coupling constants and the role i t plays in the interpretation of effective field theories is discussed. Som e future tests of the viability of the scheme are proposed too. (C) 2000 Pu blished by Elsevier Science B.V. Ail nights reserved.