Recent Progress in Effective Field Theory in the One-Nucleon Sector

Details Recent Progress in Effective Field Theory in the One-Nucleon Sector Recent Progress in Effective Field Theory in the One-Nucleon Sector

2007-10-12

arxiv.org/abs/0710.2394v1

Few Body Syst.43:179-184,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 2 figures, invited parallel session lead talk given at the 20th European Conference on Few-Body Problems in Physics (

Scientific paper

10.1007/s00601-008-0229-3

Chiral perturbation theory (ChPT) is the effective field theory of the strong interactions at low energies. We will address the issue of a consistent power counting scheme in a manifestly Lorentz-invariant formulation of baryon ChPT. As applications we show how the inclusion of vector and axial-vector mesons in the calculation of the nucleon electromagnetic and axial form factors, respectively, lead to an improved description of the empirical data. Finally, we will outline a systematic implementation of the Delta(1232) resonance into the effective field theory program.

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