Acta Physica Polonica B
Vol. 36, No. 4, April 2005, page 1033
Search for Hyperdeformation in Light Xe Nuclei
B.M. Nyako, F. Papp, J. Gal, J. Molnar, J. Timar, A. Algora, Zs. Dombradi, G. Kalinka, L. Zolnai, K. Juhasz, A.K. Singh, H. Huebel, A. Al-Khatib, P. Bringel, A. Buerger, A. Neusser, G. Schoenwasser, B. Herskind, G.B. Hagemann, C.R. Hansen, G. Sletten, J.N. Scheurer, F. Hannachi, M. Kmiecik, A. Maj, J. Styczen, K. Zuber, K. Hauschild, A. Korichi, A. Lopez-Martens, J. Roccaz, S. Siem, P. Bednarczyk, Th. Byrski, D. Curien, O. Dorvaux, G. Duchene, B. Gall, F. Khalfallah, I. Piqueras, J. Robin, S.B. Patel, A.O. Evans, G. Rainovski, A. Airoldi, G. Benzoni, A. Bracco, F. Camera, B. Million, P. Mason, A. Paleni, R. Sacchi, O. Wieland, G. La Rana, R. Moro, C.M. Petrache, D. Petrache, G. De Angelis, P. Fallon, I.-Y. Lee, J.C. Lisle, B. Cederwall, K. Lagergren, R.M. Lieder, E. Podsvirova, W. Gast, H. Jaeger, N. Redon, A. Goergen
The ultimate search for hyperdeformation (HD) at high spins with
the EUROBALL spectrometer was performed for 126Ba as a
hyper long (HLHD) experiment. The DIAMANT ancillary detector was used
to tag \gamma -rays in coincidence with the emitted light charged
particles. Using \gamma -energy correlation methods, the
particle--xn-\gamma data have been analysed to search for hyperdeformed
structures in the corresponding residual nuclei. Data in coincidence
with one \alpha particle indicate the presence of normal deformed
collective bands up to very high spins and the possible occurrence of
HD-like ridge structures in 122Xe.
PACS numbers: 27.60.+j, 21.10.Re, 23.20.Lv