M2collective excitations in light deformed nuclei and their relationship to the one pion exchange potential

The combined effect of the one pion exchange potential, the spin isospin dependent short range interaction, and the deformation on the M2 states in light deformed nuclei is studied in the framework of a semiclassical model which describes these magnetic states as longitudinal (along the symmetry axis) and transverse spin isospin oscillations. It is argued that these states might present quite distinctive properties depending on the shape of the nuclei and on the strength of the short range repulsive interaction, due to the anisotropic character of the one pion exchange potential, which gives most attraction to the longitudinal mode in oblate nuclei only.