Spectroscopy of the odd-odd fp-shell nucleus 52Sc from secondary fragmentation

Details Spectroscopy of the odd-odd fp-shell nucleus 52Sc from secondary fragmentation Spectroscopy of the odd-odd fp-shell nucleus 52Sc from secondary fragmentation

2006-03-02

arxiv.org/abs/nucl-ex/0603004v1

Phys.Rev.C73:037309,2006

Physics

Nuclear Physics

Nuclear Experiment

accepted for publication in PRC

Scientific paper

10.1103/PhysRevC.73.037309

The odd-odd fp-shell nucleus 52Sc was investigated using in-beam gamma-ray spectroscopy following secondary fragmentation of a 55V and 57Cr cocktail beam. Aside from the known gamma-ray transition at 674(5)keV, a new decay at E_gamma=212(3) keV was observed. It is attributed to the depopulation of a low-lying excited level. This new state is discussed in the framework of shell-model calculations with the GXPF1, GXPF1A, and KB3G effective interactions. These calculations are found to be fairly robust for the low-lying level scheme of 52Sc irrespective of the choice of the effective interaction. In addition, the frequency of spin values predicted by the shell model is successfully modeled by a spin distribution formulated in a statistical approach with an empirical, energy-independent spin-cutoff parameter.

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