Heavy-baryon chiral perturbation theory and reparametrization invariance

Abstract

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.

8 pages, Latex, no figures

References in corpus (2)

• Reparameterization Invariance Revisited
• Reparameterization Invariance to all Orders in Heavy Quark Effective Theory

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