Elsevier

Physics Letters B

Volume 230, Issues 1–2, 26 October 1989, Pages 21-26
Physics Letters B

Deformation and shape coexistence of 0+ states in 98Sr and 100Zr

https://doi.org/10.1016/0370-2693(89)91646-8Get rights and content

Abstract

Half-lives of 21+ levels [2.80(8) ns in98Sr, 0.55(2) ns in100Zr] and the 98Sr 41+ level [80(6) ps] were obtained using a β-γ-γ triple coincidence system. Analysis of B(E2) and B(E0) rates indicates that 98Sr and100Zr have very similar structures. Both have a highly deformed (β∼0.4) yrast band and a moderately deformed (|β|∼0.2) low-lying band. The highly deformed bands in 98Sr and 100Zr are nearly identical to the yrast bands in 100Sr and 102Zr.

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    This work was supported by the US Department of Energy under Contract Nos. DE-AC02-76CH00016 and W-7405-ENG-82.

    a

    Present address: IRS, National Research Council, Ottawa, Ontario, Canada K1A 0R6.

    b

    Permanent address: Institute for Nuclear Studies, PL-05-400 Swierk-Otwock, Poland.

    c

    Permanent address: Institute of Isotopes, H-1525 Budapest, Hungary.

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