6533b856fe1ef96bd12b3000

RESEARCH PRODUCT

Shape coexistence in neutron-deficient Hg isotopes studied via lifetime measurements inHg184,186and two-state mixing calculations

Mark HuyseW. RotherTuomas GrahnC. J. ChiaraRobert PageF. G. KondevA. DewaldR. V. F. JanssensS. ZhuJanne PakarinenMarcus ScheckN. BreeP. Van DuppenRauno JulinK. Wrzosek-lipskaM. HacksteinLiam GaffneyH. V. WatkinsD. T. JossM. P. CarpenterP. F. BertonePaivi NieminenP. A. ButlerF. FilmerSusan RigbyRaymond J. CarrollC. Fransen

subject

PhysicsNuclear and High Energy PhysicsIsotope010308 nuclear & particles physicsYrastMoment of inertia7. Clean energy01 natural sciencesRecoilAmplitude0103 physical sciencesNeutronGammasphereAtomic physicsNuclear Experiment010306 general physicsMixing (physics)

description

The neutron-deficient mercury isotopes, $^{184,186}$Hg, were studied with the Recoil Distance Doppler Shift (RDDS) method using the Gammasphere array and the Koln Plunger device. The Differential Decay Curve Method (DDCM) was employed to determine the lifetimes of the yrast states in $^{184,186}$Hg. An improvement on previously measured values of yrast states up to $8^{+}$ is presented as well as first values for the $9_{3}$ state in $^{184}$Hg and $10^{+}$ state in $^{186}$Hg. $B(E2)$ values are calculated and compared to a two-state mixing model which utilizes the variable moment of inertia (VMI) model, allowing for extraction of spin-dependent mixing strengths and amplitudes.

https://doi.org/10.1103/physrevc.89.024307