Eur. Phys. J. A (2003) 20: 191-192
https://doi.org/10.1140/epja/i2002-10351-x

Spectroscopic quadrupole moments of high-spin isomers in ¹⁹³ Pb

¹ IKS, University of Leuven, Celestijnenlaan 200 D, B-3001, Leuven, Belgium
² Faculty of Physics, St. Kliment Ohridski University of Sofia, BG-1164, Sofia, Bulgaria
³ National Institute for Physics and Nuclear Engineering, P.O. Box MG-6, Bucharest, Romania
⁴ Dipartimento di Fisica dell’Universitá di Padova and INFN, Sezione di Padova, Padova, Italy
⁵ ISKP, Universität Bonn, D-53115, Bonn, Germany
⁶ Laboratori Nazionali di Legnaro, INFN, Legnaro, Italy
⁷ Grand Accélérateur National d’Ions Lourds, F-14076, Caen Cedex 5, France
⁸ Bereich Festkorperphysik, Hahn-Meitner Institut, D-14109, Berlin, Germany
⁹ Department of Physics, University of Liverpool, L69 7ZE, Liverpool, UK
¹⁰ Institut für Kern- und Hadronenphysik, Forschungszentrum Rossendorf, D-01314, Dresden, Germany
¹¹ Department of Physics, University of Notre Dame, IN 46556, Notre Dame, USA

^* e-mail: bujor@ifin.nipne.ro

Abstract

The quadrupole interaction of high-spin isomers in ¹⁹³Pb implanted into solid Hg cooled at a temperature T = 170 K has been investigated by the time-differential perturbed -ray angular-distribution method. Spectroscopic quadrupole moment values of eb and 0.45(4) eb have been deduced for the 21/2^- and 33/2 ⁺ three-neutron states, respectively. A much higher value eb has been determined for the 29/2^- isomer, the band head of a magnetic rotational band.