Publication Type
Journal
Journal Name
Physical Review C
Publication Date
Page Number
051304
Volume
88
Issue
5
Abstract
The g factor and B (E2) of the first excited 2+ state have been measured following Coulomb excitation ofthe neutron-rich semimagic nuclide 134Te (two protons outside 132Sn) produced as a radioactive beam. The precision achieved matches related g-factor measurements on stable beams and distinguishes between alternative models. The B(E2) measurement exposes quadrupole strength in the 2+ state beyond that predicted by current large-basis shell-model calculations. This additional quadrupole strength can be attributed to coupling between the two valence protons and excitations of the 132Sn core. However, the wave functions of the low-excitation positive-parity states in 134Te up to 6+ remain dominated by the π(g7/2)2 configuration.
