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Motivation
• Astrophysical r-process
• Recent experimental progress for neutron-rich nuclei • Lack of shell model effective interactions for exotic regions
T=1 interaction and SPE sources
Ni isotopes +N=50 isotones
G-matrix Bonn-Cpotential
56Ni core
A. F. Lisetskiy, B. A. Brown, M. Horoi PRC 70, 044314, (2004)
Single particle energies
5757NiNi 7777NiNi 7979CuCu 9999InIn
p3/2
f5/2
g9/2
p1/2
g9/2
-1
p1/2-1
f5/2-1
p3/2-1
f5/2-1
p3/2-1
p1/2-1
g9/2
-1
g9/2
p1/2
f5/2
p3/2
Cu: spectra and magnetic moments
A.F. Lisetskiy, B. A. Brown, M. Horoi, EPJ direct (2005)
L. Weissman & U. Koester,Private communication
New Single Particle Energies
5757NiNi 7777NiNi 7979CuCu 9999InIn
p3/2
f5/2
g9/2
p1/2
g9/2
-1
p1/2-1
f5/2-1
p3/2-1
f5/2-1
p3/2-1
p1/2-1
g9/2
-1
g9/2
p1/2
f5/2
p3/2
Summary
• Improved shell model effective interaction for the p3/2p1/2f5/2g9/2 space in action
• Good agreement between theory and experiment for Ni isotopes indicates reliability of the interaction
• Good description of T1/2 and Pn values for Cu isotopes
• Beta decay data provide important information where nuclear structure data are missing
• Extended studies of Cu, Zn, Ga, Ge