Nuclear structure of Gd159

C. Granja, S. Pospíšil, A. Aprahamian, H. Börner, H. Lehmann, T. von Egidy, H.–F. Wirth, G. Graw, R. Hertenberger, Y. Eisermann, D. Nosek, L. Rubáček, and S. A. Telezhnikov
Phys. Rev. C 70, 034316 – Published 30 September 2004

Abstract

The well deformed atomic nucleus Gd159 was investigated by means of radiative neutron capture and single neutron transfer reactions. Nearly 70 secondary γ rays from the (n,γ) reaction studied with high-resultion bent-crystal spectrometers at Grenoble are assigned to Gd159. About 200 levels with spin up to 112 are observed in this nucleus below 2.3MeV in (d,p) and (d,t) reactions investigated at the Tandem Van de Graaff accelerator in Garching using unpolarized (18MeV) and polarized (22MeV) deuteron beams, respectively. The proposed level scheme for this nucleus is arranged into 21 rotational bands. Experimentally observed levels are interpreted using predictions obtained within the quasiparticle-phonon model and the quasiparticle-rotor approach for a well deformed nucleus.

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  • Received 23 September 2003

DOI:https://doi.org/10.1103/PhysRevC.70.034316

©2004 American Physical Society

Authors & Affiliations

C. Granja* and S. Pospíšil

  • Institute of Experimental and Applied Physics, Czech Technical University in Prague, CZ–12800 Prague 2, Czech Republic

A. Aprahamian

  • Department of Physics, Notre Dame University, South Bend, Indiana 46556, USA

H. Börner and H. Lehmann

  • Institut Laue–Langevin, BP 156, F–38042 Grenoble, France

T. von Egidy and H.–F. Wirth

  • Physik–Department, Technische Universität München, D–85748 Garching, Germany

G. Graw, R. Hertenberger, and Y. Eisermann

  • Sektion Physik, Ludwig–Maximilians–Universität München, D–85748 Garching, Germany

D. Nosek

  • Faculty of Mathematics and Physics, Charles University, CZ–18000 Prague 8, Czech Republic

L. Rubáček

  • Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, CZ–11519 Prague 1, Czech Republic

S. A. Telezhnikov

  • Joint Institute for Nuclear Research, 141–980 Dubna, M.R. Russia

  • *Electronic address: carlos.granja@utef.cvut.cz
  • Present address: Phys. Dept. Giessen University, Germany.

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Vol. 70, Iss. 3 — September 2004

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