Complete 0h̄ω calculations of Gamow-Teller strengths for nuclei in the iron region
نویسندگان
چکیده
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 J = 1, 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, 2+1 → 0 + 1 ) values are in fair agreement with experiment using effective charges of ep = 1.1 e and en = 0.1 e. PACS numbers: 21.60.Cs, 21.60.Ka, 27.40.+z, 25.40.Kv Typeset using REVTEX
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تاریخ انتشار 2008