The Isovector Quadrupole-Quadrupole Interaction Used in Shell Model Calculations with ΔN=2 Excitations
M. S. Fayache, Y. Y. Sharon, L. Zamick
Abstract
The effect of the ``B'' term in the interaction -χQ· Q(1+Bτ(1)· τ(2)), which was previously considered in the 0p shell, is now studied in a larger space which includes ΔN=2 excitations. We still get a collapse of low-lying states below the conventional J=0+ ground state when B is made sufficiently negative.
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