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Conversion--electron gamma--ray coincidence spectroscopy of superdeformed 135Nd |
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| Authors: | B Aengenvoort W Korten H Hübel S Chmel A Görgen UJ van Severen W Pohler R Zinken T Härtlein C Ender F Köck P Reiter D Schwalm F Schindler J Gerl R Schubart F Azaiez S Bouneau J Duprat I Deloncle |
| Institution: | Institut für Strahlen- und Kernphysik, Universit?t Bonn, Nussallee 14-16, D-53115 Bonn, Germany, DE Max-Planck Institut für Kernphysik, Saupfercheckweg 1, D-69029 Heidelberg, Germany, DE Ludwig-Maximilians-Universit?t München, Am Coulombwall 1, D-85748 Garching, Germany, DE Gesellschaft für Schwerionenforschung, Planckstr. 1, D-64291 Darmstadt, Germany, DE Institut de Physique Nucléaire, IN2P3/CNRS, F-91406 Orsay Campus, France, FR CSNSM, IN2P3/CNRS, F-91405 Orsay Campus, France, FR |
| Abstract: | Three mini-orange conversion–electron spectrometers and four Euroball Ge Cluster detectors have been used for γ–e- coincidence spectroscopy of superdeformed 135Nd. Transitions within the superdeformed band are shown to have the expected E2 multipolarity. The 766.5–keV transition which links the band to a positive-parity state has a conversion coefficient consistent with M1 multipolarity. Consequently, positive parity is deduced for the superdeformed band. No evidence for E0 transitions was found. Received: 22 December 1997 / Revised version: 19 January 1998 |
| Keywords: | PACS:21 10 Hw Spin parity and isobaric spin – 23 20 Nx Internal conversion and extranuclear effects – 23 20 Js Multipole matrix elements – 27 60 +j 90 ≤ A ≤ 149 |
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