6533b854fe1ef96bd12afc9e

RESEARCH PRODUCT

Experimental investigation of the 02+ band in Sm154 as a β-vibrational band

Andrej HerzanJames SmallcombeR.-d. HerzbergJuha SorriSami Rinta-antilaD. G. JenkinsPaul GreenleesE. ParrJanne PakarinenPeter M. JonesC. J. BartonL.-l. AnderssonMikael SandzeliusPaivi NieminenPauli PeuraJan SarénP. J. DaviesPhilippos PapadakisPhilippos PapadakisC. ScholeyS. JuutinenA. Lopez-martensA. Lopez-martensPanu RuotsalainenUlrika JakobssonJuha UusitaloR. JulinMatti LeinoK. HauschildK. HauschildDaniel CoxP. RahkilaT. GrahnSteffen KetelhutP. A. ButlerA. K. Mistry

subject

PhysicsNuclear and High Energy PhysicsSilicon010308 nuclear & particles physicsGamma raychemistry.chemical_elementGermaniumElectron01 natural sciencesBohr modelsymbols.namesakeInternal conversionchemistry0103 physical sciencessymbolsInteracting boson modelAtomic physics010306 general physicsSpectroscopy

description

Abstract A study of Sm 154 through γ -ray and internal conversion electron coincidence measurements was performed using the Silicon And GErmanium spectrometer (SAGE). An upper limit for the ρ 2 ( E 0 ; 2 2 + → 2 1 + ) and measurement of the ρ 2 ( E 0 ; 4 2 + → 4 1 + ) monopole transitions strengths were determined. The extracted transition strength for each is significantly lower than that predicted by either the Bohr and Mottelson β -vibration description or the interacting boson model. Hence, the long standing interpretation of these states as a collective band built on the 0 2 + state, which is conventionally assigned as a Bohr and Mottelson β vibration is questionable.

yearjournalcountryeditionlanguage
2014-05-01Physics Letters B
https://doi.org/10.1016/j.physletb.2014.03.034