RIBF ULIC and CNS Symposium on Frontier of Gamma-ray Spectroscopy (Gamma11)

Session

Collectivities and shell effects in neutron/proton-rich nuclei

COL

30 Jun 2011, 10:50

RIBF conference room

46. Collective modes of excitation in exotic nuclei

Dr Kenichi Yoshida (Niigata University)

30/06/2011, 10:50

Invited talk

Collective modes of excitation unique in deformed neutron-rich nuclei are investigated by the use of the nuclear energy-density functional method. Effects of nuclear deformation and neutron excess on the low-lying dipole excitation and the giant resonances will be discussed.

20. Gamma-ray Spectroscopy of neutron-rich Mg isotopes by using proton inelastic scattering

Dr Shin'ichiro MICHIMASA (CNS, Univ. of Tokyo)

30/06/2011, 11:20

Contribution talk

The gamma-ray spectroscopy in 34,36Mg(p,p') reactions will be presented in this talk. The experiment has been performed at RIPS beamline in RIKEN facility by using the secondary beam of very neutron-rich sd-shell nuclei. This talk will be focused on the neutron-rich side of 'island of inversion', and will be presented about experimental details and obtained results. We will discuss on...

15. Large-amplitude deformation dynamics in low-lying states of magnesium isotopes around island of inversion

Dr Nobuo HINOHARA (RIKEN Nishina Center)

30/06/2011, 11:40

Contribution talk

Microscopic mechanism of breaking the N=20 shell gap and nature of deformation in the `island of inversion' is currently under active discussion both experimentally and theoretically. Significant increase of the E(4)/E(2) ratio and the B(E2;2+->0+) value in magnesium isotopes from 30Mg to 34Mg clearly indicate a rapid growth of quadrupole deformation. Experimental data suggest a kind of...