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arXiv · hep-ph/9611260

Heavy-baryon chiral perturbation theory and reparametrization invariance

J. W. Bos·D. Chang·S. C. Lee·Y. C. Lin·H. H. Shih
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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 ($|ΔS| =1$) 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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J. W. Bos, D. Chang, S. C. Lee, Y. C. Lin, H. H. Shih. 1996-11-07. Heavy-baryon chiral perturbation theory and reparametrization invariance. https://doi.org/10.1103/physrevd.57.4101

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