Title of article
Evidence for octupole vibration in superdeformed 196Pb
Author/Authors
D. Rossbach، نويسنده , , A. Gorgen، نويسنده , , H. Hübel، نويسنده , , E. Mergel، نويسنده , , G. Schonwasser، نويسنده , , A.N. Wilson، نويسنده , , F. Azaiez، نويسنده , , A. Astier، نويسنده , , D. Bazzacco، نويسنده , , M. Bergstr?m، نويسنده , , C. Bourgeois، نويسنده , , N. Buforn، نويسنده , , F. Hannachi، نويسنده , , K. Hauschild، نويسنده , , A. Korichi، نويسنده , , W. Korten، نويسنده , , T. Kroll، نويسنده , , A. Lopez-Martens، نويسنده , , R. Lucas، نويسنده , , H.J. Maier، نويسنده , , et al.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
6
From page
9
To page
14
Abstract
Evidence for a low-lying octupole vibrational excitation in the superdeformed energy minimum of 196Pb is presented. High-spin states in this nucleus have been populated in the 170Er(30Si, 4n)196Pb reaction. The in-beam γ-ray decay has been investigated using the EUROBALL IV Ge-detector array. The linear polarization of γ-ray transitions connecting an excited superdeformed band with the yrast superdeformed band has been measured from which E1 multipolarity is determined. These E1 transitions, which compete with the highly collective in-band E2 transitions, are strongly enhanced. This is an important step towards establishing that low-lying octupole vibrations are a wide spread phenomenon in the A=190 region of superdeformation.
Journal title
PHYSICS LETTERS B
Serial Year
2001
Journal title
PHYSICS LETTERS B
Record number
914469
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