6533b85cfe1ef96bd12bc1c3

RESEARCH PRODUCT

Collective rotation of an oblate nucleus at very high spin

A. AstierC. M. PetracheJózsef TímárPhilippos PapadakisSong GuoJan SarénTuomas GrahnJuha UusitaloRauno JulinJoonas KonkiSanna StolzePaul GreenleesSakari JuutinenO. AktasJ. SrebrnyJuha SorriIstván KutiS. FrauendorfDaniel CoxE. DupontB. F. LvJari PartanenBo CederwallCatherine ScholeyJanne PakarinenPanu RahkilaM. L. LiuKaihang WangCorina AndreoiuMikael SandzeliusX. H. ZhouHuan LiuH. BadranA. ErtoprakA. Tucholski

subject

Physicsnuclear spinta114010308 nuclear & particles physicsNuclear Theorycollective models[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]RotationNuclear Structure01 natural sciencesmedicine.anatomical_structureelectromagnetic transitions0103 physical sciencesQuadrupoleOblate spheroidmedicineEquidistantcollective levelsAtomic physics010306 general physicsSpin (physics)ydinfysiikkaNucleusSequence (medicine)

description

International audience; A sequence of nine almost equidistant quadrupole transitions is observed in Nd137. The sequence represents an extremely regular rotational band that extends to a spin of about 75/2 and an excitation energy of ≈4.5MeV above yrast. Cranked mean-field calculations of the Nilsson-Strutinsky type suggest an oblate shape for the band. They reproduce the observed I(I+1) dependence of the rotational energy whereas predicting a pronounced decrease in the deformation, which is the hallmark of antimagnetic rotation.

yearjournalcountryeditionlanguage
2019-04-01
10.1103/physrevc.99.041301https://hal.archives-ouvertes.fr/hal-02123364