https://doi.org/10.1140/epja/i2008-10640-4
Regular Article - Experimental Physics
Mass dependence of the surface δ-interaction strength for two-particle (two-hole) multiplets
1
Max-Planck-Institut für Kernphysik, D-69029, Heidelberg, Germany
2
Institut für Kernphysik, Universität zu Köln, D-50937, Köln, Germany
* e-mail: A.Heusler@mpi-hd.mpg.de
Received:
25
March
2008
Accepted:
20
August
2008
Published online:
16
September
2008
By using the surface δ -interaction, the lowest states in nuclei of atomic mass number 6≤A≤210 with a doubly magic core and two valence nucleons are investigated. A single parameter describes the strength of the multiplet splitting of the lowest configuration which includes the ground state. The dependence of the strength on the atomic mass number of the doubly magic core is determined as a power law function A-f with an exponent f = 
for 50 ≲ A≤208 .
PACS: 21.30.Fe Forces in hadronic systems and effective interactions – / 21.60.Cs Shell model – / 27.60.+j 90 
A
149 – / 27.80.+w 190
A
219 –
© SIF, Springer-Verlag Berlin Heidelberg, 2008
