Shape coexistence in the neutron-deficient lead region: A systematic study of lifetimes in the even-even $^{188-200}$Hg with GRIFFIN
- Olaizola, B
- Garnsworthy, AB
- Ball, GC
- Bernier, N
- Bowry, M
- Caballero-Folch, R
- Dillmann, I
- Georges, S
- Hackman, G
- Smallcombe, J
- Smith, JK
- Southall, D
- Timakova, E
- Umashankar, R
- Ali, FA
- Bidaman, H
- Bildstein, V
- Burbadge, C
- Varela, A Diaz
- Dunlop, RA
- Dunlop, M
- Garrett, PE
- Hadina, B
- Jigmeddorj, B
- Kisliuk, D
- Laffoley, A
- MacLean, A
- Muecher, D
- Radich, A
- Rand, ET
- Svensson, CE
- Turko, J
- Zidar, T
- Andreoiu, C
- Garcia, F
- Pore, JL
- Rizwan, U
- Starosta, K
- Voss, P
- Williams, J
DOIAbstract
Lifetimes of $2^+_1$ and $4^+_1$ states, as well as some negative-parity and non-yrast states, in $^{188-200}$Hg were measured using $\gamma-\gamma$ electronic fast timing techniques with the LaBr$_3$(Ce) detector array of the GRIFFIN spectrometer. The excited states were populated in the $\epsilon/\beta^+$-decay of $J^\pi =7^+/2^-$ $^{188-200}$Tl produced at the TRIUMF-ISAC facility. The deduced B(E2) values are compared to different interacting boson model predictions. The precision achieved in this work over previous ones allows for a meaningful comparison with the different theoretical models of these transitional Hg isotopes, which confirms the onset of state mixing in $^{190}$Hg
Add to ORKG