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EnglishCharged particles and high energy γ rays from the decay of the 156Er compound nucleus populated at Ex=47 MeV excitation energy by the 12C+144Sm and 64Ni+92Zr reactions have been measured to study possible nonstatistical or entrance channel effects. The experimental spectra and published evaporation residue and neutron data are compared with statistical model calculations. The comparison shows that the statistical model with standard parametrization of level density and yrast lines describes reasonably well the bulk of experimental observables but not the shape of neutron spectra if account is taken of the enhancement factor for E2 transitions. The discrepancies between experimental data and model calculations are discussed.
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| Titolo: | Decay of Er156 compound nucleus |
| Autori: | |
| Data di pubblicazione: | 1990 |
| Rivista: | |
| Abstract: | Charged particles and high energy γ rays from the decay of the 156Er compound nucleus populated at Ex=47 MeV excitation energy by the 12C+144Sm and 64Ni+92Zr reactions have been measured to study possible nonstatistical or entrance channel effects. The experimental spectra and published evaporation residue and neutron data are compared with statistical model calculations. The comparison shows that the statistical model with standard parametrization of level density and yrast lines describes reasonably well the bulk of experimental observables but not the shape of neutron spectra if account is taken of the enhancement factor for E2 transitions. The discrepancies between experimental data and model calculations are discussed. |
| Handle: | http://hdl.handle.net/11567/392324 |
| Appare nelle tipologie: | 01.01 - Articolo su rivista |
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