TheGe70,72(n,p)70,72Ga reactions: Suppression of Gamow-Teller strength nearN=40
Physical Review C1992Vol. 45(3), pp. 997–1004
Citations Over TimeTop 10% of 1992 papers
M. C. Vetterli, K. P. Jackson, A. Ćeller, J. Engel, D. Frekers, O. Häusser, R. L. Helmer, R. Henderson, K. H. Hicks, R. G. Jeppesen, B. Larson, B. W. Pointon, A. Trudel, S. Yen
Abstract
The $^{70,72}\mathrm{Ge}$(n,p${)}^{70,72}$Ga reactions have been measured at a beam energy of 200 MeV in order to study the behavior of Gamow-Teller (GT) strength near the N=40 subshell closure. The GT quenching factor extracted for $^{70}\mathrm{Ge}$ is consistent with results for $^{54}\mathrm{Fe}$ and with calculations done on the quasiparticle random-phase-approximation model if they are renormalized by a factor of about 0.6. The quasiparticle random-phase approximation predicts a drastic reduction in concentrated GT strength from $^{70}\mathrm{Ge}$ to $^{72}\mathrm{Ge}$ which is also seen in the data. These results are relevant to models of supernovae.
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