1998/08/28 by Sven Steininger, Ulf-G. Meißner, Nadia Fettes · 1 citation
Engineering · Physics and Astronomy · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Superconducting Materials and Applications #hep-ph
paper · pdf · doi:10.1088/1126-6708/1998/09/008
published as JHEP 9809 (1998) 008 · 25 pp, JHEP.cls, uses epsf+epsfig, 2 figs, some corrections
arxiv created 1998/08/28 · openalex publication_date 1998/09/11 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We reconsider the question of wave function renormalization in heavy fermion effective field theories. In particular, we work out a simple and efficient scheme to define the wave function renormalization with respect to the lowest order heavy fermion propagator. The method presented is free of a set of ambiguities which arise in heavy fermion effective field theories. In this context, we discuss the approaches used in the literature so far. We also calculate the fourth order pion mass contribution to the nucleon mass shift and discuss the tree and loop contributions to the electric Sachs form factor of the nucleon.