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Physical Review C 74 (2006) 014305
Competition between collective and noncollective excitation modes at high spin in 124Ba
A. Al-Khatib, A.K. Singh, H. Hubel, P. Bringel, A. Burger, J. Domscheit, A. Neusser-Neffgen, G. Schoenwasser, G.B. Hagemann, C.R. Hansen, B. Herskind, G. Sletten, J.N. Wilson, J. Timar, A. Algora, Z. Dombradi, J. Gal, G. Kalinka, J. Molnar, B.M. Nyako, D. Sohler, L. Zolnai, R.M. Clark, M. Cromaz, P. Fallon, I.Y. Lee, A.O. Macchiavelli, D. Ward, H. Amro, W.C. Ma, M. Kmiecik, A. Maj, J. Styczen, K. Zuber, K. Hauschild1, A. Korichi1, A. Lopez-Martens1, J. Roccaz1, S. Siem1, F. Hannachi2, J.N. Scheurer2, P. Bednarczyk3, T. Byrski3, D. Curien3, O. Dorvaux3, G. Duchene3, B. Gall3, F. Khalfallah3, I. Piqueras3, J. Robin3, A. Gorgen4, K. Juhasz, S.B. Patel, A.O. Evans, G. Rainovski, G. Benzoni, A. Bracco, F. Camera, S. Leoni, P. Mason, B. Million, A. Paleni, R. Sacchi, O. Wieland, C.M. Petrache, D. Petrache, G. La Rana, R. Moro, G. De Angelis, J.C. Lisle, B. Cederwall, K. Lagergren, R.M. Lieder, E. Podsvirova, W. Gast, H. Jager, N. Redon5
(2006)

High-spin states in 124Ba were investigated in two experiments using the 64Ni(64Ni, 4n)124Ba reaction at three different beam energies. In-beam gamma-ray coincidences were measured with the Euroball and Gammasphere detector arrays. In the experiment with Euroball, the CsI detector array Diamant was employed to discriminate against charged-particle channels. Six new rotational bands were observed in 124Ba, and previously known bands were extended to higher spins. One of the bands shows a transition from collective to noncollective behavior at high spins. Configuration assignments are suggested on the basis of comparison with cranked shell model and cranked Nilsson-Strutinsky calculations
1 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
2 :  CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
3 :  DRS-IPHC - Département Recherches Subatomiques
4 :  DAPNIA - Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée
5 :  IPNL - Institut de Physique Nucléaire de Lyon
Physique/Physique Nucléaire Expérimentale
GAMMA-RAY SPECTROSCOPY – BA-CE-REGION – ROTATIONAL BANDS – MASS REGION – TERMINATING BANDS – XE-NUCLEI – STATES – ALIGNMENTS – HYPERDEFORMATION – SPECTROMETER
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