Comparison between experimental decay of the compound nuclei150Gd and evaporation calculations |
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Authors: | S Della Negra H Gauvin H Jungclas Y Le Beyec M Lefort |
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Institution: | 1. Institut de Physique Nucléaire, Chimie Nucléaire, Orsay, France
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Abstract: | The deexcitation of the compound nucleus150Gd formed by156O+134Ba and40Ar+110Pd have been studied. Excitation functions were determined for various exit channels: (HI, × n) withx=3, 4, 5 (HI, pxn) withx=2, 3, 4 (HI, axn) withx=3 and 5. A systematic comparison has been made between these experimental data and the results of evaporation calculation using the ALI CE code. The very good agreement obtained for the total residue cross section disappears completely when a more detailed analysis of the different contributions is performed. Absolute and relative cross sections are not reproduced; excitation functions of each individual channel (HI, 3n), (HI, 4n) etc. ... are not found at the right place in energy. A very preliminary explanation for such a shift towards higher energies is suggested. |
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