1302.0958 (Shuichiro Ebata et al.)

Systematic investigation of E1 strength for the isotopes from Z = 28 to
50    [PDF]

Shuichiro Ebata, Takashi Nakatsukasa, Tsunenori Inakura

We carry out a systematic study of electric dipole mode (E1) for neutron-rich isotopes from nickel (Z=28) to tin (Z=50) using a time-dependent mean-field theory. Our time-dependent scheme is the canonical-basis time-dependent Hartree-Fock-Bogoliubov theory which can self-consistently describe nuclear dynamics with pairing correlation. We focus our discussion on the pygmy dipole resonance (PDR) and E1 polarizability. The correlation between neutron-skin thickness and PDR strongly depends on the neutron number, but the correlation between the skin thickness and E1 polarizability is much more stable.

View original: http://arxiv.org/abs/1302.0958