Renormalized interactions with a realistic single particle basis

Details Renormalized interactions with a realistic single particle basis Renormalized interactions with a realistic single particle basis

2010-09-24

arxiv.org/abs/1009.4916v2

Phys.Rev.C83:024315,2011

Physics

Nuclear Physics

Nuclear Theory

6 pages

Scientific paper

10.1103/PhysRevC.83.024315

Neutron-rich isotopes in the sdpf space with Z < 15 require modifications to derived effective interactions to agree with experimental data away from stability. A quantitative justification is given for these modifications due to the weakly bound nature of model space orbits via a procedure using realistic radial wavefunctions and realistic NN interactions. The long tail of the radial wavefunction for loosely bound single particle orbits causes a reduction in the size of matrix elements involving those orbits, most notably for pairing matrix elements, resulting in a more condensed level spacing in shell model calculations. Example calculations are shown for 36Si and 38Si.

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