Prof.
Silvia Lenzi
(Universty of Padova and INFN)
07/06/2010, 11:10
Shell structure far from stability
invited
Far from the valley of beta stability, the nuclear shell structure undergoes important and substantial modifications. In medium-light nuclei, interesting changes have been observed such as the appearance of new magic numbers, and the development of new regions of deformation around nucleon numbers that are magic near stability. The observed changes help to shed light on specific terms of the...
Mr
Jan Diriken
(Katholieke Universiteit Leuven)
07/06/2010, 11:40
Shell structure far from stability
oral
The interest in the structure of nuclei around 68Ni has been triggered long ago by the observation of the high excitation energy of the first 2+ in this nucleus [1]. Combining this observation with the fact that a minimum is reached in the systematic of B(E2;2+ -> 0+)-values at N=40 in the neutron rich nickel chain has lead to interpretations in terms of a harmonic oscillator subshell closure...
giovanna benzoni
(INFN sezione di Milano)
07/06/2010, 12:00
Shell structure far from stability
oral
The neutron-rich lead region is of exceptional interest to trace the evolution of single-particle levels and the residual proton-neutron interaction beyond the doubly magic 208Pb. While 208Pb is well understood in terms of the shell model, experimental data on the heavier isotopes are very scarce[1,2].
Another crucial aspect that calls for further experimental information is the evaluation...
Batipste MOUGINOT
(Institut de Physique Nucléaire d'Orsay)
07/06/2010, 12:20
At and beyond the dripline
oral with financial aid
One of the most critical ingredients in determining the disappearance or appearance of magicity in nuclei far from stability is the evolution of single-particle energies with increasing neutron or proton numbers when moving away from the valley of stability. The three known cases of disappearance of shell effects at N=8, 20 and 28 in neutron rich nuclei are understood as due to the effect of...
Bradley Cheal
(The University of Manchester, UK)
07/06/2010, 12:40
Shell structure far from stability
oral with financial aid
Laser spectroscopy performed at ISOLDE, CERN has been revolutionised by the installation of an ion beam cooler, ISCOOL. This device, a gas-filled linear RFQ, serves not only to improve the beam quality but also delivers a bunched ion beam. Recent measurements on isotopes of gallium (Z=31) are presented which illustrate the improvement. The phenomenon of monopole migration is the primary...
