Evidence for low-lying prolate bands in $^188Pb$ and $^186Pb$

J. Heese, K.H. Maier, H. Grawe, J. Grebosz, H. Kluge, W. Meczynski, M. Schramm, R. Schubart, K.M. Spohr, J. Styczen

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Abstract

Yrast states of the nuclei 188Pb and 186Pb located in the middle of the 82 < N < 126 shell have been studied for the first time in the reactions 156,154Gd (36Ar, 4n ) at 175 MeV. Gamma rays following the heavy-ion fusion-evaporation reactions were detected in coincidence with evaporation residues. Both nuclei exhibit a structure very different from the heavier even-even lead isotopes and show low-lying, probably prolate rotational bands.
Original languageEnglish
Pages (from-to)390-395
Number of pages6
JournalPhysics Letters B
Volume302
Issue number4
DOIs
Publication statusPublished - 1 Apr 1993
Externally publishedYes

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