Conveners
Medium nuclei II
- Yorick Blumenfeld (Institut de Physique Nucléaire-Orsay)
Andreas Goergen
(University of Oslo)
12/19/12, 3:40 PM
Submitted
The open-shell nuclei with Z>50 and N<82 are predicted to have the largest ground-state deformation in the entire nuclear chart. The shapes are predicted to be prolate except for a small region of nuclei with Z>60 and N≈78, which are predicted to be oblate. Similar to the situation in Hg and Pb isotopes at neutron mid-shell, prolate and oblate shapes can be expected to lie close in energy for...
Prof.
Alexandrina Petrovici
(IFIN-HH)
12/19/12, 4:00 PM
Submitted
The structure of neutron-rich nuclei in the A~100 mass region
relevant for the astrophysical r-process manifests drastic changes in some isotopic chains and often sudden variations of particular
nuclear properties have been identified. For a realistic description of the evolution in structure with increasing spin, energy, and isospin determined by shape coexistence and mixing...
Emmanuel Clement
(GANIL)
12/19/12, 4:20 PM
Submitted
The IS451 experiment aims to investigate the shape transition at N=60 in the n-rich Sr isotopes by safe Coulomb excitation at the Miniball setup using REX. In 2007, we have investigated the N=58 nearly spherical Sr96 using a molecular extraction within an UCx primary target. A second run in 2011 focussed on the highly deformed isotopes 98Sr using at that time in-trap and in-EBIS beta decay to...
Jose Antonio Briz Monago
(Consejo Superior de Investigaciones Cientificas (CSIC) (ES))
12/19/12, 4:40 PM
Submitted
The N=Z nucleus 72Kr is situated in the mass region A≈70-80, where phenomena such as shape coexistence [1,2] and possibly also np pairing effects can show up. From the astrophysical point of view, 72Kr is involved in the rp-process of stellar nucleosynthesis being a waiting point nucleus as 73Rb, next step in the one proton capture, is unbound and there is a competition between the two proton...
David Lunney
(CSNSM Centre de Spectrometrie Nucle aire et de Spectrometrie de)
12/19/12, 5:00 PM
It’s not just a coincidence that dramatic changes in nuclear deformation occur over just a few nucleons in the middle of a region defined by proton and neutron shell closures. Some of the most sudden and intense shape transitions on the chart occur in the A = 100 region bounded by the Z = 28 and 50 proton closed shells and the N = 50 and
82 neutron closed shells. These rambunctious nuclides...
