Eur. Phys. J. A 14, 159-167 (2002)
High-spin states in and their underlying shell model configurationsH. Röpke, J. Brenneisen and M. Lickert
Fakultät für Physik der Universität Freiburg, Freiburg i.Br., Germany email@example.com
(Received 21 December 2001 Communicated by D. Schwalm)
Eight high-spin states in below 10 MeV excitation energy, among them a prospective state at 9408 keV and the levels of the recently discovered superdeformed rotational band, have been observed by n- coincidence measurements with the reaction at and 13.4 MeV. High-spin assignments of, respectively, and 5- were obtained for the and 1462 keV ( Ex=9682 and 9927 keV) resonances of the reaction by a measurement of -ray angular distributions. The spectrum of the high-spin and of the MeV levels is decomposed according to the underlying shell model configurations with n=0,1,2,4 particles excited from the N = 2 into the N = 3 major shell. The role of four-particle excitations, all connected with large prolate distortions, is elucidated for the entire A=36-40 mass region.
27.30.+t - .
21.60.Cs - Shell model.
21.10.Re - Collective levels.
© Società Italiana di Fisica, Springer-Verlag 2002