Applications of Relativistic Mean Field Theory- deformed RPA and nuclear structure

When?

Tuesday 25 October 2011, 14.00

Where?

30 BB 03 Physics Seminar Room

Open to:

Students, Staff

Speaker:

Daniel Pena Arteada, SNRS, Orsay, France

Part I Deformed RPA

The E1 strength is systematically analyzed in very neutron-rich Sn nuclei, beyond $^{132}$Sn until $^{166}$Sn, within the Relativistic Quasiparticle Random Phase Approximation. The great neutron excess favors the appearance of a deformed ground state for $^{142-162}$Sn.  The evolution of the low-lying strength in deformed nuclei is determined by the interplay of two factors, isospin asymmetry and deformation.

Part II

Covariant density functional theory is used to study the effect of strong magnetic fields, up to the limit predicted for neutron stars (for magnetars $B \approx10^{18}$G), on nuclear structure. All new terms in the equation of motion resulting from time reversal symmetry breaking by the magnetic field and the induced currents, as well as axial deformation, are taken into account in a self-consistent fashion.