6533b85dfe1ef96bd12be04c
RESEARCH PRODUCT
Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of Hg-182, Hg-184, Hg-186 and Hg-188
K RezynkinaK RezynkinaP. MarleyJ. E. García-ramosJan DirikenN. KestelootP. ReiterL. M. FraileMark HuyseKristiaan HeydeR. D. PageO. IvanovR. GernhäuserR. KrückenTh. KröllA. C. LarsenE. RapisardaE. RapisardaTuomas GrahnTuomas GrahnAlick DeaconN. WarrA. PettsAp RobinsonAp RobinsonS. J. FreemanP. J. NapiorkowskiP. Van DuppenR-d HerzbergThomas Elias CocoliosThomas Elias CocoliosThomas Elias CocoliosB. BruyneelGry Merete TvetenR. OrlandiR. OrlandiE. PiselliCh. FransenB. BastinB. BastinMarcus ScheckMarcus ScheckConor FitzpatrickD. VoulotRauno JulinBaharak HadiniaBaharak HadiniaL. PróchniakJ. SrebrnyMagne GuttormsenSunniva SiemLiam GaffneyJ. L. WoodH. HessPanu RahkilaJ. Van De WalleP. A. ButlerJ. F. SmithK Singh ChakkalD. G. JenkinsMichaël BenderAndreas WiensAndrei AndreyevAndrei AndreyevM. P. CarpenterM. HassPauli PeuraK Hadyńska-klȩkJanne PakarinenJanne PakarinenR. LutterAndreas EkströmI. StefanescuI. StefanescuP.-h. HeenenJoakim CederkällJoakim CederkällK. GeibelA. BlazhevM. ZielinskaM. ZielinskaK. Wrzosek-lipskaK. Wrzosek-lipskaE. ClémentE. ClémentN. BreeN. PatronisN. Patronissubject
MomentsIntruder01 natural sciencesMOMENTSNuclear ExperimentPhysicseducation.field_of_studyYrastBohr modelLIFETIMESddc:Mean field theorysymbolsFísica nuclearAtomic physicsydinfysiikkaConfigurationNuclear and High Energy PhysicsELECTRIC-MONOPOLE TRANSITIONS3106PopulationElectric-monopole transitionsDEFORMED BANDSLifetimesCoulomb excitationNUCLEAR[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]114 Physical sciencessymbols.namesakeIsomerismSHAPE COEXISTENCE0103 physical sciencesNuclear fusionNuclear Physics - ExperimentNeutronNuclear010306 general physicseducationCONFIGURATIONDeformed bands010308 nuclear & particles physicsINTRUDERShape coexistence2207 Física Atómica y NuclearDecayPhysics and Astronomy13. Climate actionISOMERISMInteracting boson modelDECAYdescription
The neutron-deficient mercury isotopes serve as a classical example of shape coexistence, whereby at low energy near-degenerate nuclear states characterized by different shapes appear. The electromagnetic structure of even-mass 182-188 Hg isotopes was studied using safe-energy Coulomb excitation of neutron-deficient mercury beams delivered by the REX-ISOLDE facility at CERN. The population of $ 0^{+}_{1,2}$01,2+, $ 2^{+}_{1,2}$21,2+and $ 4^{+}_{1}$41+states was observed in all nuclei under study. Reduced E2 matrix elements coupling populated yrast and non-yrast states were extracted, including their relative signs. These are a sensitive probe of shape coexistence and may be used to validate nuclear models. The experimental results are discussed in terms of mixing of two different configurations and are compared with three different model calculations: the Beyond Mean Field model, the Interacting Boson Model with configuration mixing and the General Bohr Hamiltonian. Partial agreement with experiment was observed, hinting to missing ingredients in the theoretical descriptions. The neutron-deficient mercury isotopes serve as a classical example of shape coexistence, whereby at low energy near-degenerate nuclear states characterized by different shapes appear. The electromagnetic structure of even-mass 182-188 Hg isotopes was studied using safe-energy Coulomb excitation of neutron-deficient mercury beams delivered by the REX-ISOLDE facility at CERN. The population of $ 0^{+}_{1,2}$01,2+, $ 2^{+}_{1,2}$21,2+and $ 4^{+}_{1}$41+states was observed in all nuclei under study. Reduced E2 matrix elements coupling populated yrast and non-yrast states were extracted, including their relative signs. These are a sensitive probe of shape coexistence and may be used to validate nuclear models. The experimental results are discussed in terms of mixing of two different configurations and are compared with three different model calculations: the Beyond Mean Field model, the Interacting Boson Model with configuration mixing and the General Bohr Hamiltonian. Partial agreement with experiment was observed, hinting to missing ingredients in the theoretical descriptions. ispartof: The European Physical Journal A - Hadrons and Nuclei vol:55 issue:8 pages:130-130 status: published
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-08-01 |