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FIZIKA B 12 (2003) 2, 145 - 152
LETTER TO THE EDITOR
ORBITING-CLUSTER MODEL WITH COMBINATORIAL LEVEL DENSITY
ZORAN BASRAKa, ROBERT PEZERb and SUZANA SZILNERa,
aRuđer Bošković Institute, Bijenička 54, HR-10002 Zagreb,
Croatia
bPhysics Department, Faculty of Science, University of Zagreb, Bijenička 32,
HR-10000 Zagreb, Croatia
Received 17 June 2003; revised manuscript received 21 July 2003
Accepted 28 July 2003 Online 3 March 2004
The combinatorial nuclear level densities are used in the orbiting-cluster model
calculations. Previous predictions of the model of resonance observability obtained for
systems of mass A Ł 56 with nuclear statistical-model (Bethe
formula) level densities are confirmed. The present calculation correctly predicts
resonances in barium isotopes, in accordance with recent experimental results, while the
statistical model does not.
PACS numbers: 25.70.Ef, 21.10.Ma, 25.70.-z
UDC 539.142.3, 539.144
Keywords: heavy ions, nuclear molecules, resonances, combinatorial level density
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