Bochum 1998 – wissenschaftliches Programm

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HK: Hadronen und Kerne

HK 63: Spectroscopy: 180 ≤ A ≤ 208

HK 63.8: Vortrag

Donnerstag, 19. März 1998, 15:45–16:00, D

Investigation of Superdeformation in ¹⁹⁶Pb with EUROBALL^∗ — •A.  Görgen¹, H.  Hübel¹, S.  Chmel¹, J.  Domscheit¹, F. Azaiez², M. Belleguic², S. Bouneau², J. Duprat², A. Astier³, L. Ducroux³, R. Duffait³, M. Meyer³, S. Perriers³, N. Redon³, D. Bazzacco⁴, S. Lunardi⁴, C. Petrache⁴, C. Rossi Alvarez⁴, R. Venturelli⁴, I. Deloncle⁵, F. Hannachi⁵, A. Korichi⁵, M.G. Porquet⁵, C. Schück⁵, M. Houry⁶, Y. Le Coz⁶, R. Lucas⁶, A.N. Wilson⁷, B. Cederwall⁸, D. Gassmann⁹, and H.J. Maier⁹ — ¹ISKP Univ. Bonn — ²IPN Orsay — ³IPN Lyon — ⁴Univ. and INFN Padova — ⁵CSNSM Orsay — ⁶CEA Saclay — ⁷Univ. Yale — ⁸MSI Stockholm — ⁹LMU München

High–spin states in ¹⁹⁶Pb were populated via the ¹⁸⁶W(¹⁶O,6n) reaction at a beam energy of 110 MeV. The beam was delivered by the Tandem XTU accelerator of the Legnaro National Laboratory, Gamma rays were measured with the EUROBALL array which consisted of 13 Cluster–, 25 Clover– and 28 standard Germanium detectors. The target was of a stack of two self supporting foils with a thickness of 400 µg/cm² each. In total 3.5·10⁹ events with a coincidence fold of F ≥ 6 of unsuppressed Ge signals have been collected. The level scheme in the second minimum with four superdeformed bands is investigated and a search for linking transitions is performed.

=0cm ^∗ supported by BMBF