6533b826fe1ef96bd1283f58

RESEARCH PRODUCT

Pronounced shape change induced by quasiparticle alignment

H.g. ThomasRoberto MenegazzoM. De PoliW. GelletlyJ. EberthA. GadeaD. FoltescuB. RubioRamon WyssC. Rossi AlvarezF. BeckerP. SpolaoreAni AprahamianS. M. LenziP. PavanA. M. Bizzeti-sonaD. R. NapoliS. LunardiAlejandro AlgoraD. De AcuñaF. BrandoliniC. A. UrC. M. PetracheE. FarneaG. De AngelisD. BazzaccoT. MartinezClaes FahlanderS. SkodaP. G. BizzetiDirk Rudolph

subject

PhysicsNuclear and High Energy PhysicsShape changeSpectrometerIsotopeAttenuationNuclear TheoryKryptonFísicachemistry.chemical_elementParity (physics)chemistryQuadrupoleQuasiparticleAtomic physics

description

Mean lifetimes of high-spin states of Kr-74 have been determined using the Doppler-shift attenuation method. The high-spin states were studied using the Ca-40(Ca-40, alpha 2p) reaction at a beam energy of 160 MeV with the GASP gamma-ray spectrometer. The ground-state band and negative parity side band show the presence of three different configurations in terms of transitional quadrupole deformations. A dramatic shape change was found along the ground-state band after the S-band crossing. The deduced quadrupole deformation changes are well reproduced by cranked Woods-Saxon Strutinsky calculations.

yearjournalcountryeditionlanguage
2000-02-11Physical Review C
https://doi.org/10.1103/physrevc.61.031303