Pair breaking and even–odd structure in fission-fragment yields

The probabilities of single-particle excitations that preserve completely paired configurations of the nuclear proton and neutron subsystems are formulated as a function of excitation energy in the framework of the superfluid nuclear model. These calculations are used to analyse measured data on eve...

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Bibliographic Details
Published in:Nuclear physics. A 2000-10, Vol.678 (3), p.215-234
Main Authors: Rejmund, F., Ignatyuk, A.V., Junghans, A.R., Schmidt, K.-H.
Format: Article
Language:English
Subjects:
Even-odd structure in fission-fragment yields
Nuclear Experiment
Nuclear fission
Pair breaking
Physics
Statistical model
Super-fluid nuclear model
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Summary:The probabilities of single-particle excitations that preserve completely paired configurations of the nuclear proton and neutron subsystems are formulated as a function of excitation energy in the framework of the superfluid nuclear model. These calculations are used to analyse measured data on even–odd structure in fission-fragment yields. Excitation energies acquired at scission are deduced. The strongly differing even–odd structures in proton and neutron numbers are explained within the assumption of thermal equilibrium of intrinsic excitations at scission.
ISSN:0375-9474
1873-1554
DOI:10.1016/S0375-9474(00)00322-5