6533b854fe1ef96bd12ae8ca
RESEARCH PRODUCT
Monopole-Driven Shell Evolution below the Doubly Magic Nucleus Sn132 Explored with the Long-Lived Isomer in Pd126
Megumi NiikuraGiuseppe LorussoDaiki NishimuraHiroki NishibataR. OrlandiK. SteigerG. D. KimAnna WendtGregory LaneToshiyuki KuboYoung-ki KimYounghun KwonA. Montaner-pizáRoman GernhäuserPär-anders SöderströmTakaharu OtsukaToshiyuki SumikamaHiroshi WatanabeHiroyuki TakedaJan TaproggeK. Y. ChaeF. BrowneAyumi YagiK. MoschnerI. KojouharovGary SimpsonH. BabaGuillaume GeyHiroyoshi SakuraiPieter DoornenbalNaoki FukudaF. C. L. CrespiZs. PodolyákZ. H. LiK. OgawaZena PatelHyo Soon JungG. BenzoniZhengyu XuK. YoshinagaShunji NishimuraN. KurzF. G. KondevNaohiro InabeTadaaki IsobeF. NaqviH. SchaffnerChang-bum MoonA. JungclausHiroshi SuzukiD. KamedaZs. VajtaJin WuAtsuko Odaharasubject
PhysicsSpins010308 nuclear & particles physicsMagnetic monopoleGeneral Physics and AstronomyNanotechnologyParity (physics)01 natural sciencesBeta decaymedicine.anatomical_structureDouble beta decayExcited state0103 physical sciencesmedicineNeutronAtomic physics010306 general physicsNucleusdescription
A new isomer with a half-life of 23.0(8) ms has been identified at 2406 keV in (126)Pd and is proposed to have a spin and parity of 10(+) with a maximally aligned configuration comprising two neutron holes in the 1h(11/2) orbit. In addition to an internal-decay branch through a hindered electric octupole transition, β decay from the long-lived isomer was observed to populate excited states at high spins in (126)Ag. The smaller energy difference between the 10(+) and 7(-) isomers in (126)Pd than in the heavier N=80 isotones can be interpreted as being ascribed to the monopole shift of the 1h(11/2) neutron orbit. The effects of the monopole interaction on the evolution of single-neutron energies below (132)Sn are discussed in terms of the central and tensor forces.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-07-25 | Physical Review Letters |