학술논문
Improved measurement of the $0_2^+\rightarrow0_1^+$ E0 transition strength for $^{72}$Se using the SPICE spectrometer
Document Type
Working Paper
Author
Smallcombe, J.; Garnsworthy, A. B.; Korten, W.; Singh, P.; Ali, F. A.; Andreoiu, C.; Ansari, S.; Ball, G. C.; Barton, C. J.; Bhattacharjee, S. S.; Bowry, M.; Caballero-Folch, R.; Chester, A.; Gillespie, S. A.; Grinyer, G. F.; Hackman, G.; Jones, C.; Melon, B.; Moukaddam, M.; Nannini, A.; Ruotsalainen, P.; Starosta, K.; Svensson, C. E.; Wadsworth, R.; Williams, J.
Source
Phys. Rev. C 106, 014312 (2022)
Subject
Language
Abstract
The selenium isotopes lie at the heart of a tumultuous region of the nuclear chart where shape coexistence effects grapple with neutron-proton pairing correlations, triaxiality, and the impending proton dripline. In this work a study of $^{72}$Se by internal conversion electron and $\gamma$-ray spectroscopy was undertaken with the SPICE and TIGRESS arrays. New measurements of the branching ratio and lifetime of the $0_2^+$ state were performed yielding a determination of $\rho^2(E0;0_2^+{\rightarrow}0_1^+)=29(3)$ milliunits. two state mixing calculations were performed that highlighted the importance of interpretation of such $E0$ strength values in the context of shape-coexistence.