The level scheme of the neutron-rich 94Y isotope has been extended up to the 5324 keV excitation energy. During the analysis, a structure above the previously known (5+) isomer, at 1202 keV, was extended by employing multifold gamma-ray coincidence relationships measured with the EXILL array. For some of the new states, the spin-parity assignment has been proposed on the basis of gamma angular correlations and shell-model considerations. The newly identified structure is characteristic of spherical or nearly spherical configurations and no evidence for new isomers and rotational patterns was found.

Medium and high spin structure in the 94Y isotope produced in fission induced by cold neutrons / Å.W. Iskra, B. Fornal, S. Leoni, G. Bocchi, A. Blanc, S. Bottoni, N. Cieplicka-Oryńczak, M. Jentschel, U. Köster, C. Michelagnoli, P. Mutti, T. Soldner, G. De France, G.S. Simpson, C.A. Ur, W. Urban. - In: PHYSICA SCRIPTA. - ISSN 0031-8949. - 92:10(2017).

Medium and high spin structure in the 94Y isotope produced in fission induced by cold neutrons

S. Leoni;G. Bocchi;S. Bottoni;
2017

Abstract

The level scheme of the neutron-rich 94Y isotope has been extended up to the 5324 keV excitation energy. During the analysis, a structure above the previously known (5+) isomer, at 1202 keV, was extended by employing multifold gamma-ray coincidence relationships measured with the EXILL array. For some of the new states, the spin-parity assignment has been proposed on the basis of gamma angular correlations and shell-model considerations. The newly identified structure is characteristic of spherical or nearly spherical configurations and no evidence for new isomers and rotational patterns was found.
fission reaction; gamma spectroscopy; isomers; shape transition; shell model; atomic and molecular physics, and optics; mathematical physics; condensed matter physics
Settore FIS/01 - Fisica Sperimentale
Article (author)
File in questo prodotto:
File Dimensione Formato  
PhysSoc_RoyalSwedAcademy_MediumHighSpin_2017.pdf

accesso riservato

Tipologia: Publisher's version/PDF
Dimensione 528.26 kB
Formato Adobe PDF
528.26 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/558266
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 2
social impact