The collectivity in the yrast band of100Zr: the half-life of the 41+ state

H. Ohm, M. Liang, G. Molnár, K. Sistemich

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The half-lives of the 2+ and 4+ levels of the yrast band in100Zr have been determined to be 0.54(4) ns and 37(4) ps, respectively, at the fission-product separator JOSEF, in a β-- γ- γ coincidence experiment which exploited the fast timing properties of plastic and BaF2 detectors. The half- life of the 41+ state corresponds to an intrinsic quadrupole moment of |Q0|=3.14(17)b which confirms the strongly deformed nature, in a way independent of the configuration mixing in the ground state. The value of t1/2(21+) corroborates a recently published value. There is evidence for a decrease of |Q0| with increasing spin in the yrast bands of the N=60 isotones98Sr and100Zr.

Original languageEnglish
Pages (from-to)519-520
Number of pages2
JournalZeitschrift für Physik A Atomic Nuclei
Issue number4
Publication statusPublished - Dec 1 1989


ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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