Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10725369 | Physics Letters B | 2018 | 6 Pages |
Abstract
The low energy excited 02,3+ states in 96Sr are amongst the most prominent examples of shape coexistence across the nuclear landscape. In this work, the neutron [2s1/2]2 content of the 01,2,3+ states in 96Sr was determined by means of the d(95Sr,âp) transfer reaction at the TRIUMF-ISAC2 facility using the SHARC and TIGRESS arrays. Spectroscopic factors of 0.19(3) and 0.22(3) were extracted for the 96Sr ground and 1229 keV 0+ states, respectively, by fitting the experimental angular distributions to DWBA reaction model calculations. A detailed analysis of the γ-decay of the isomeric 03+ state was used to determine a spectroscopic factor of 0.33(13). The experimental results are compared to shell model calculations, which predict negligible spectroscopic strength for the excited 0+ states in 96Sr. The strengths of the excited 02,3+ states were also analyzed within a two-level mixing model and are consistent with a mixing strength of a2=0.40(14) and a difference in intrinsic deformations of |Îβ|=0.31(3). These results suggest coexistence of three different configurations in 96Sr and strong shape mixing of the two excited 0+ states.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
S. Cruz, P.C. Bender, R. Krücken, K. Wimmer, F. Ames, C. Andreoiu, R.A.E. Austin, C.S. Bancroft, R. Braid, T. Bruhn, W.N. Catford, A. Cheeseman, A. Chester, D.S. Cross, C.Aa. Diget, T. Drake, A.B. Garnsworthy, G. Hackman, P.J. Voss,