Gamow-Teller Strength in the Region of ${}^{100}$Sn

Abstract

New calculations are presented for Gamow-Teller beta decay of nuclei near ${}^{100}$Sn. Essentially all of the ${}^{100}$Sn Gamow-Teller decay strength is predicted to go to a single state at an excitation energy of 1.8 MeV in ${}^{100}$In. The first calculations are presented for the decays of neighboring odd-even and odd-odd nuclei which show, in contrast to ${}^{100}$Sn, surprisingly complex and broad Gamow-Teller strength distributions. The results are compared to existing experimental data and the resulting hindrance factors are discussed.

Comments: 12 pages (latex) and 2 figures available on request