6533b7d8fe1ef96bd1269613

RESEARCH PRODUCT

Shape coexistence in $^{178}$Hg

C. Müller-gatermannA. DewaldC. FransenK. AuranenH. BadranM. BeckersA. BlazhevT. BraunrothD.m. CullenG. FruetA. GoldkuhleT. GrahnP.t. GreenleesA. HerzáňU. JakobssonD. JenkinsJ. JolieR. JulinS. JuutinenJ. KonkiM. LeinoJ. LitzingerK. NomuraJ. PakarinenP. PeuraM.g. ProcterP. RahkilaP. RuotsalainenM. SandzeliusJ. SarénC. ScholeyJ. SorriS. StolzeM.j. TaylorJ. UusitaloK.o. Zell

subject

alpha decaycollective levelscollective models[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]ydinfysiikkaNuclear ExperimentNuclear Structure

description

Lifetime measurements of excited states in 178 Hg have been performed using the 103 Rh ( 78 Kr , p 2 n ) reaction at a beam energy of 354 MeV. The recoil-decay tagging (RDT) technique was applied to select the 178 Hg nuclei and associate the prompt γ rays with the correlated characteristic ground-state α decay. Lifetimes of the four lowest yrast states of 178 Hg have been determined using the recoil distance Doppler-shift (RDDS) method. The experimental data are compared to theoretical predictions with focus on shape coexistence. The results confirm the shift of the deformed prolate structures to higher lying states but also indicate their increasing deformation with decreasing neutron number. peerReviewed

10.1103/physrevc.99.054325https://hal.archives-ouvertes.fr/hal-02153751