Eur. Phys. J. A 10, 259-265

High-spin states in ²⁰⁸Pb

J. Wrzesinski¹, K.H. Maier^{1, 2}, R. Broda¹, B. Fornal¹, W. Królas¹, T. Pawlat¹, D. Bazzacco³, S. Lunardi³, C. Rossi Alvarez³, G. de Angelis⁴, A. Gadea⁴, J. Gerl⁵ and M. Rejmund<sup>6

1</sup>  Niewodniczanski Institute of Nuclear Physics, PL-31-342 Kraków, Poland
²  Hahn-Meitner Institut, D-14109 Berlin, Germany
³  Dipartimento di Fisica dell'Università and INFN Sezione di Padova, I-35131 Padova, Italy
⁴  INFN Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
⁵  Gesellschaft für Schwerionenforschung, Darmstadt, Germany
⁶  DAPNIA/SPhN, CEA Saclay, F91191 Gif-sur Yvette Cedex, France

(Received: 31 October 2000 Communicated by D. Schwalm)

Abstract
High-spin states in ²⁰⁸Pb have been studied by -ray-spectroscopy methods in deep inelastic reactions induced by beams of ²⁰⁸Pb, ¹³⁶Xe and ⁷⁶Ge beams on a thick ²⁰⁸Pb target. The 11⁺₂ state and new -transitions between the one-particle one-hole states of highest spin have been found and electromagnetic matrix elements verified. High-spin states of two-particle two-hole structure have been detected for the first time. The results are compared to shell model calculations with realistic interactions in the complete Kuo-Herling space.

PACS
21.60.Cs - Shell model.
23.20.Lv - Gamma transitions and level energies.
27.80.+w - 190 219.
25.70.Lm - Strongly damped collisions.

© Società Italiana di Fisica, Springer-Verlag 2001