https://doi.org/10.1140/epja/i2007-10521-4
Regular Article - Theoretical Physics
Calculation of energy levels with the hybrid multi-determinant method in the fp region
Dipartimento di Fisica dell'Università di Milano, and INFN sezione di Milano, Via Celoria 16, I-20133, Milano, Italy
* e-mail: giovanni.puddu@mi.infn.it
Received:
24
September
2007
Accepted:
13
January
2008
Published online:
6
February
2008
We compare the recent exact and coupled-cluster calculations (Phys. Rev. Lett. 98, 112501 (2007)) of energy levels using the GXPF1A Hamiltonian modified with variable shell gap with the corresponding results obtained with the hybrid multi-determinant scheme. We show that the hybrid multi-determinant scheme is highly cost-efficient and very accurate for several angular momenta and variable shell gap of the f5/2, p3/2, p1/2 shells relative to the f7/2 shell.
PACS: 21.60.Cs Shell model – / 31.15.xt Variational techniques – / 27.40.+z 39 ⩽ A ⩽ 58 –
© Società Italiana di Fisica and Springer-Verlag, 2008