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

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.Comment: 12 pages (latex) and 2 figures available on reques

Band structures in /sup 121/Xe and /sup 119/Xe excited by /sup 12/C induced reactions

Band structures in /sup 119,121/Xe produced by /sup 110,112/Cd (/sup 12/C, 3n) reaction have been investigated using in-beam gamma spectroscopic techniques. Details of the structures of the h/sub 11/2/ and g/sub 7/2/ bands are presented. A new d/sub 3/2/ decoupled band has been observed in /sup 121/Xe and a possible g/sub 9/2/ band in /sup 119/Xe. These collective features are discussed in the framework of the triaxial-rotor-plus-particle model, and the IBFA model. (13 refs)