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Coulomb excitation of 107Sn |
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| Authors: | D D DiJulio J Cederkall C Fahlander A Ekstr?m M Hjorth-Jensen M Albers V Bildstein A Blazhev I Darby T Davinson H De Witte J Diriken Ch Fransen K Geibel R Gernh?user A G?rgen H Hess J Iwanicki R Lutter P Reiter M Scheck M Seidlitz S Siem J Taprogge G M Tveten J Van de Walle D Voulot N Warr F Wenander K Wimmer |
| Institution: | 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 Universit?t M??nchen, 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????nergie Nucl??aire (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. Fakult?t f??r Physik, Ludwig-Maximilians-Universit?t M??nchen, 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 |
| 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 $\ensuremath 3/2^{+}$ 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 $\ensuremath 2^{+}$ 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 $\ensuremath d_{5/2}$ and $\ensuremath g_{7/2}$ single-neutron states. |
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