ROLE OF OCTUPOLE DISTORTIONS OF THE FERMI SURFACE ON ELECTRIC ISOSCALAR COLLECTIVE MODES

The purpose of this work is to inquire on the continuum mechanical features of a system of strongly interacting fermions using the framework of Fermi liquids. The Landau equation for the Fermi distribution function is transformed into a set of coupled fluid-dynamical equations for multipole distortions of the Fermi surface up to l = 3. The set of fluid-dynamical equations for a one-component nuclear Fermi system is applied to the propagation of wave disturbances in infinite nuclear matter and electric isoscalar giant resonances in spherical nuclei.

Automated summary

The purpose of this work is to investigate the continuum mechanical properties of a system of strongly interacting fermions using the framework of Fermi liquids. The Landau equation for the Fermi distribution function is transformed into a set of coupled fluid-dynamical equations for describing multipole distortions of the Fermi surface, up to l = 3. The set of fluid-dynamical equations is then applied to study wave disturbances in infinite nuclear matter and electric isoscalar giant resonances in spherical nuclei.