Chiral dynamics of rare eta decays and virtual Compton scattering off the nucleon

S. Scherer

doi:10.1016/S0375-9474(97)00440-5

paper

Chiral dynamics of rare eta decays and virtual Compton scattering off the nucleon

arXiv:hep-ph/9612228 · doi:10.1016/S0375-9474(97)00440-5

Abstract

Two different topics relevant for DA $Φ$ NE and CEBAF, respectively, are covered. First we analyze the rare radiative eta decay mode $η \to π π γ γ$ within the framework of chiral perturbation theory at $O (p^{4})$ . We then discuss virtual Compton scattering off the nucleon at low energies. Predictions for the two spin-independent generalized polarizabilities are shown.

5 pages, 3 postscript figures, Revtex using epsf, invited talk given at the workshop DAPHCE96, Frascati, November 1996, to appear in the proceedings (Nucl. Phys. A)