Heavy-baryon chiral perturbation theory and reparametrization invariance

Details Heavy-baryon chiral perturbation theory and reparametrization invariance Heavy-baryon chiral perturbation theory and reparametrization invariance

1996-11-07

arxiv.org/abs/hep-ph/9611260v1

Phys.Rev. D57 (1998) 4101-4107

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, Latex, no figures

Scientific paper

10.1103/PhysRevD.57.4101

We examine the constraints imposed by reparametrization invariance on heavy-baryon chiral perturbation theory (HBChPT). We study the case of 3 flavors and consider both the strong and weak ($|\Delta S| =1$) interaction sector. Some of the parameters in the HBChPT Lagrangian are fixed as a consequence of reparametrization invariance. We discuss the consequences for the calculation of hyperon weak radiative decays in HBChPT.

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