Complete 0ħω calculations of Gamow-Teller strengths for nuclei in the iron region

Creators: Dean, D. J.; Radha, P. B.; Langanke, K.; Alhassid, Y.; Koonin, S. E.; Ormand, W. E.

Abstract

Gamow-Teller strengths for selected nuclei in the iron region (A∼56) have been investigated via shell-model Monte Carlo calculations with realistic interactions in the complete fp basis. Results for all cases show significant quenching relative to single-particle estimates, in quantitative agreement with (n,p) data. The T=0 residual interaction and the f7/2-f5/2 spin-orbit splitting are shown to play major roles in the quenching mechanism. Calculated B(E2,21+→01+) values are in fair agreement with experiment using effective charges of ep=1.1e and en=0.1e.

Additional Information

©1994 The American Physical Society. Received 3 February 1994. This work was supported in part by the National Science Foundation, Grants No. PHY90-13248 and No. PHY91-15574, and by the Department of Energy, Grant No. DE-FG-0291ER-40608. W.E.O. acknowledges the Weingart Foundation for financial support. We are grateful to P. Vogel and B.A. Brown for helpful discussions. Computational cycles were provided by the Caltech Concurrent Supercomputing Consortium on the Intel DELTA parallel supercomputer.

Files

DEAprl94.pdf

Files (813.8 kB)

Name	Size	Download all
DEAprl94.pdf md5:5059839238be1c391a0e641961005f1d	813.8 kB	Preview Download

Additional details

	All versions	This version
Views	0	0
Downloads	0	0
Data volume	0 Bytes	0 Bytes