P. B. Radha, D. J. Dean, S. E. Koonin, K. Langanke, P. Vogel
Published 1997-07-29Version 1
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.
Journal: Phys.Rev.C56:3079-3086,1997
Gamow-Teller strength distributions at finite temperatures and electron capture in stellar environments
Extracting spectra in the shell model Monte Carlo method using imaginary-time correlation matrices
Microsopic nuclear level densities by the shell model Monte Carlo method
