Experimental g factor and B(E2) value of the 41+ state in Coulomb-excited Zn66 compared to shell-model predictions

J. Leske, K.-H. Speidel, S. Schielke, J. Gerber, P. Maier-Komor, T. Engeland, and M. Hjorth-Jensen
Phys. Rev. C 73, 064305 – Published 20 June 2006

Abstract

The g factor of the 41+ state in Zn66 has been measured for the first time employing the technique of projectile Coulomb excitation in inverse kinematics combined with transient magnetic fields. The lifetime of this state, τ(41+)=1.1(2) ps, which has been remeasured by the Doppler shift attenuation method, is twice as large as a previously determined value. Both the deduced B(E2;41+21+)=133(24) e2fm4 and the g factor of the 41+ state, g(41+)=+0.65(20), were interpreted, together with results for the 21+ state, in the framework of shell-model calculations based on a Ni56 closed-shell core. The present results are also compared with those for neighboring Zn64 and Zn68 that were obtained in previous measurements by the same technique.

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  • Received 15 March 2006

DOI:https://doi.org/10.1103/PhysRevC.73.064305

©2006 American Physical Society

Authors & Affiliations

J. Leske, K.-H. Speidel, and S. Schielke

  • Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, Nussallee 14-16, D-53115 Bonn, Germany

J. Gerber

  • Institut de Recherches Subatomiques, F-67037 Strasbourg, France

P. Maier-Komor

  • Physik-Department, Technische Universität München, James-Franck-Straße, D-85748 Garching, Germany

T. Engeland and M. Hjorth-Jensen

  • Department of Physics and Center of Mathematics for Applications, University of Oslo, N-0316 Oslo, Norway

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Issue

Vol. 73, Iss. 6 — June 2006

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