Studies of quadrupole collectivity in the γ -soft 106Ru

M. Sanchez-Vega, Henryk Mach, R.B.E. Taylor, B. Fogelberg, A. Lindroth, A.J. Aas, P. Dendooven, A. Honkanen, M. Huhta, G. Lhersonneau, M. Oinonen, J.M. Parmonen, H. Penttilä, J. Äystö, J.R. Persson, J. Kurpeta

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Sammanfattning

Various alternative models were used to describe the structure of 106Ru . For example, the General Collective Model (GCM) predicts shape-coexistence for 106Ru with a spherical and a triaxial minimum and strongly mixed structures, while in the IBA-2 calculations, where 106Ru was considered as transitional from vibrational U(5) to γ -soft O(6) , no need was found to include the shape-coexisting configurations. In order to provide additional constraints on the model interpretations, we have applied the Advanced Time-Delayed (ATD) βγγ(t) method to measure the level lifetimes of the excited levels in 106Ru . The new results include the half-lives of T 1/2 = 183(3) ps and 7.5(30)ps for the 2+ 1 and 2+ 2 states, respectively.

OriginalspråkEngelska
Sidor (från-till)159-165
Antal sidor6
TidskriftEuropean Physical Journal A
Volym35
Utgåva2
DOI
StatusPublicerad - 2008
Externt publiceradJa

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