Electromagnetic transition strengths in 109/52Te
Procter, M. G., Cullen, D., Scholey, C., Ruotsalainen, P., Angus, L., Bäck, T., . . . Xu, F. R. (2012). Electromagnetic transition strengths in 109/52Te. Physical Review C, 86 (3), 034308. doi:10.1103/PhysRevC.86.034308
Published inPhysical Review C
Wady, P. |
Qi, C. |
© 2012 American Physical Society. Published in this repository with the kind permission of the publisher.
Lifetime measurements have been made in the neutron-deficient nucleus 109Te using the coincident recoil distance Doppler-shift method. The experimental B(E2) values have been compared with state-of-the-art shellmodel calculations using the monopole-corrected realistic charge-dependent Bonn nucleon-nucleon potential. Lifetimes in the νh11/2 band are consistent with an interpretation based on the deformation driving properties of a single valence neutron outside of the even-even tellurium core and highlight the unexpected presence of collective behavior as the N = 50 shell closure is approached. Lifetime measurements for the low-lying positive-parity states also appear to correlate well with shell-model calculations. In addition, a comparison with the proton-unbound nucleus 109I suggests that the presence of a single decoupled valence proton affects the total measured B(E2) strengths in a manner that is not currently well understood.