Beta Decay of the In-134 Nucleus and Properties of N >= 81 Odd-Odd Neutron-Rich Indium Isotopes

摘要

The beta decay of the In-134 nucleus, which is a neutron-rich odd-odd nucleus and which has an anomalously long lifetime, is studied in detail, and an attempt is made to determine its ground-state spin on this basis. The Cd-131 -> In-131 beta-decay process is used as a guideline for finding the required matrix element. An analysis of the features of splitting of the {(nu 2f(7/2))(nodd),(pi 1g(9/2))(-1)} neutron-proton configuration, which is the lowest one and which determines properties of the spectrum of the lowest states of indium isotopes, is also performed for 83 <= N <= 89 in this connection.