Pion-nucleon scattering and isospin violation

Details Pion-nucleon scattering and isospin violation Pion-nucleon scattering and isospin violation

1998-05-25

arxiv.org/abs/hep-ph/9805440v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pp, LaTeX, uses psfig and sprocl.sty, 3 figs, invited talk, workshop on "Future Directions in Quark-Nuclear Physics", Adelai

Scientific paper

I discuss low-energy pion-nucleon scattering in the framework of chiral perturbation theory. I argue that using this theoretical method one is able to handle the in some cases tremendous experimental accuracy (for the low partial waves). I then show how strong and electromagnetic isospin violation can be treated simultaneously. Some first results for neutral pion scattering and the $\sigma$-term are given.

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