ENAM 2004

The European Physical Journal A - Hadrons and Nuclei

, Volume 25, Supplement 1, pp 499-502

First online:

Shell-model description of neutron-rich pf-shell nuclei with a new effective interaction GXPF 1

  • M. HonmaAffiliated withCenter for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi, Aizu-Wakamatsu Email author 
  • , T. OtsukaAffiliated withDepartment of Physics and Center for Nuclear Study, University of Tokyo, HongoRIKEN, Hirosawa, Wako-shi
  • , B. A. BrownAffiliated withNational Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University
  • , T. MizusakiAffiliated withInstitute of Natural Sciences, Senshu University, Higashimita, Tama, Kawasaki

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The shell-model effective interaction GXPF1 is tested for the description of unstable pf-shell nuclei. The GXPF1 successfully describes the N = 32 shell gap in Ca, Ti and Cr isotopes, while the deviation of predicted E x(2+ 1) in 56Ti from the recent experimental data requires the modification of the Hamiltonian especially in the T = 1 matrix elements related to the p 1/2 and f 5/2 orbits. The modified interaction gives improved description simultaneously for all these isotope chains.


21.60.Cs Shell model 21.30.Fe Forces in hadronic systems and effective interactions