Manifestly Lorentz-Invariant Baryon Chiral Perturbation Theory

Details Manifestly Lorentz-Invariant Baryon Chiral Perturbation Theory Manifestly Lorentz-Invariant Baryon Chiral Perturbation Theory

2005-09-19

arxiv.org/abs/hep-ph/0509186v1

Int.J.Mod.Phys. A21 (2006) 881-884

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures, invited talk at International Conference on QCD and Hadronic Physics, Beijing, China, 16-20 June 2005

Scientific paper

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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