Eur. Phys. J. A (2012) 48: 105
https://doi.org/10.1140/epja/i2012-12105-7

Regular Article - Experimental Physics

Coulomb excitation of ¹⁰⁷Sn

¹ Physics Department, Lund University, 118, SE-221 00, Lund, Sweden
² Department of Physics and Center of Mathematics for Applications, University of Oslo, N-0316, Oslo, Norway
³ National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, 48824, East Lansing, MI, USA
⁴ Institute of Nuclear Physics, University of Cologne, D-50937, Cologne, Germany
⁵ Physik Department E12, Technische Universität München, D-85748, Garching, Germany
⁶ Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, B-3001, Leuven, Belgium
⁷ Department of Physics and Astronomy, University of Edinburgh, Edinburgh, UK
⁸ Studiecentrum voor Kernenergie/Centre d’Etude de l’énergie Nucléaire (SCK CEN), B-2400, Mol, Belgium
⁹ Department of Physics, University of Oslo, Oslo, Norway
¹⁰ Heavy Ion Laboratory, University of Warsaw, Warsaw, Poland
¹¹ Fakultät für Physik, Ludwig-Maximilians-Universität München, D-85748, Garching, Germany
¹² Oliver Lodge Laboratory, University of Liverpool, Liverpool, UK
¹³ PH Department, CERN 1211, Geneva 23, Switzerland
¹⁴ AB Department, CERN 1211, Geneva 23, Switzerland

Received: 23 April 2012
Accepted: 11 July 2012
Published online: 30 July 2012

Abstract

The radioactive isotope ¹⁰⁷Sn was studied using Coulomb excitation at the REX-ISOLDE facility at CERN. This is the lightest odd-Sn nucleus examined using this technique. The reduced transition probability of the lowest-lying state was measured and is compared to shell-model predictions based on several sets of single-neutron energies relative to ¹⁰⁰Sn . Similar to the transition probabilities for the states in the neutron-deficient even-even Sn nuclei, the measured value is underestimated by shell-model calculations. Part of the strength may be recovered by considering the ordering of the and single-neutron states.