Speaker
Zsolt Dombradi
(MTA ATOMKI)
Description
For the previous PAC meetings we submitted proposals to study the structure of neutron rich nuclei via proton inelastic scattering and nucleon removal reactions. Availability of a new hydrogen target and the MINOS setup may trigger the resubmission of the proposals.
At one of the first PAC meetings we proposed the study of odd nuclei below the N=50 shell closure to get information on the systematic behavior of the single particle states approaching 78Ni, The energies to be measured determine the strength of the shell closures at N=50 and Z=28. For this purpose we intended to use mainly proton removal reactions the sensitivity of which will be enhanced by use of the MINOS setup. Depending on the success of the previous 78Ni experiment, we are going to resubmit this proposal with highest priority.
Based on our results obtained on the enhanced cross section of excitation of states in 27F we proposed to study the F and Ne isotopes next to the N=20 shell closure trough combined use of proton inelastic scattering and Coulomb excitation in order to show that there is an extended neutron distribution – similarly to the carbon case – which is caused by the weakly bound p3/2 neutrons intruding from the next major shell. The extended neutron distribution of the p3/2 neutrons has been shown in 31Ne during the previous 48Ca campaign.
A similar proposal has also been submitted for exploration of the region beyond 132Sn, where some times ago anomalously low B(E2) values have been measured. This experiment was intended as a follow up of the Coulomb excitation studies in the region, which will provide information on the charge distribution. The physics problem addressed in the proposal is still actual.
Primary author
Zsolt Dombradi
(MTA ATOMKI)
