Spectroscopy of Cd99 and In101 from β decays of

J. Park¹,

R. Krücken²,

A. Blazhev³

et al.

Abstract

We report on new γ -ray spectroscopy results from β decays of 99 In and 101 Sn. 30 new γ rays were observed following the β decay of 99 In, and inconsistencies in the literature with respect to the γ rays following the β decay of 101 Sn were addressed with two confirmed cases and two new transitions. The experimental γ -ray energies, intensities, and coincidence relationships are discussed with shell model calculations, where theoretical β-decay branching ratios from the parent nuclei and γ -ray cascades of excited states from the daughter nuclei were combined to generate hypothetical βγ spectra and βγ γ coincidence matrices. The most intense β-delayed γ -ray branches in both 99 Cd and 101 In were well reproduced with this approach, and several γ rays were assigned to new excited states based on their good agreement with shell model predictions.