Ultrafast-timing lifetime measurements in Ru 94 and Pd 96 : Breakdown of the seniority scheme in N = 50 isotones
Fraile, L. M.
Penionzkevich, Yu. E.
Santos, F. De Oliviera
De France, G.
Lisetskiy, A. F.
Płóciennik, W. A.
AffiliationUniv Arizona, Dept Phys
MetadataShow full item record
PublisherAMER PHYSICAL SOC
CitationUltrafast-timing lifetime measurements in Ru 94 and Pd 96 : Breakdown of the seniority scheme in N = 50 isotones 2017, 95 (1) Physical Review C
JournalPhysical Review C
Rights©2017 American Physical Society
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractThe advanced time-delayed gamma gamma(t) method has been applied to determine half-lives of low-lying states in the N = 50 isotones Ru-94 and Pd-96. The inferred experimental E2 strengths for the 4(+) -> 2(+) transitions in the two nuclei show a dramatic deviation with respect to the shell model predictions in the (f(5/2), p, g(9/2)) proton hole space in Sn-100. The anomalous behavior can be ascribed to a breakdown of the seniority quantum number in the pi g(9/2)(n) configuration due to particle-hole excitations across the N = Z = 50 shell as confirmed by large-scale shell model calculations.
VersionFinal published version
SponsorsSwedish Research Council; European Community [HPRI-CT 1999-00019]; Spanish MINECO [FPA2015-65035-P]