Off-Mass-Shell π\piN Scattering and pp→ppπ0pp \to pp \pi^0

We adapt the off-shell $\pi$N amplitude of the Tucson-Melbourne three-body force to the half-off-shell amplitude of the pion rescattering contribution to $pp \to pp \pi^0$ near threshold. This {\em pion} rescattering contribution, together with the impulse term, provides a good description of the data when the half-off-shell amplitude is linked to the phenomenological invariant amplitudes obtained from meson factory $\pi$N scattering data.Comment: 3 pages, contributed to STORRI99, Bloomington, Indiana, September 199

Strongly magnetized iron white dwarfs and the total lepton number violation

The influence of a neutrinoless electron to positron conversion on a cooling of strongly magnetized iron white dwarfs is studied.Comment: 4 pages, contribution to the conference MEDEX'13, Prague, June 11-14, 201