Low momentum nucleon-nucleon potential and shell model effective interactions
نویسندگان
چکیده
A low momentum nucleon-nucleon (NN) potential Vlow−k is derived from meson exhange potentials by integrating out the model dependent high momentum modes of VNN . The smooth and approximately unique Vlow−k is used as input for shell model calculations instead of the usual Brueckner G matrix. Such an approach eliminates the nuclear mass dependence of the input interaction one finds in the G matrix approach, allowing the same input interaction to be used in different nuclear regions. Shell model calculations of 18O and 134Te using the same input Vlow−k have been performed. For cut-off momentum Λ in the vicinity of 2 fm−1, our calculated low-lying spectra for these nuclei are in good agreement with experiments, and are weakly dependent on Λ. 21.60.Cs; 21.30.Fe; 27.80.+j Typeset using REVTEX 1
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