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Manifestly Lorentz-Invariant Baryon Chiral Perturbation Theory

Stefan Scherer
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Abstract

A successful effective field theory program requires besides the most general effective Lagrangian a perturbative expansion scheme for observables in terms of a consistent power counting method. We discuss a renormalization scheme for manifestly Lorentz-invariant baryon chiral perturbation theory generating a simple and consistent power counting for renormalized diagrams. The approach may be used in an iterative procedure to renormalize higher-order loop diagrams and also allows for implementing a consistent power counting when vector mesons are explicitly included.

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Stefan Scherer. 2005-09-19. Manifestly Lorentz-Invariant Baryon Chiral Perturbation Theory. https://doi.org/10.1142/s0217751x06032228

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