arXiv:hep-ph/0412092·v1·High Energy Physics — Phenomenology
Baryon masses and nucleon sigma terms in manifestly Lorentz-invariant baryon chiral perturbation theory
B. C. Lehnhart🇩🇪 · J. Gegelia🇩🇪 · S. Scherer🇩🇪
Abstract
We discuss the masses of the ground state baryon octet and the nucleon sigma terms in the framework of manifestly Lorentz-invariant baryon chiral perturbation theory. In order to obtain a consistent power counting for renormalized diagrams the extended on-mass-shell renormalization scheme is applied.
Comments: 18 pages, 3 figures, accepted for publication in J. Phys. G