Gamow-Teller strength distributions in fp-shell nuclei

Details Gamow-Teller strength distributions in fp-shell nuclei Gamow-Teller strength distributions in fp-shell nuclei

1997-07-29

arxiv.org/abs/nucl-th/9707052v1

Phys.Rev.C56:3079-3086,1997

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

10.1103/PhysRevC.56.3079

We use the shell model Monte Carlo method to calculate complete 0f1p-shell response functions for Gamow-Teller (GT) operators and obtain the corresponding strength distributions using a Maximum Entropy technique. The approach is validated against direct diagonalization for 48Ti. Calculated GT strength distributions agree well with data from (n,p) and (p,n) reactions for nuclei with A=48-64. We also calculate the temperature evolution of the GT+ distributions for representative nuclei and find that the GT+ distributions broaden and the centroids shift to lower energies with increasing temperature.

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