We have derived a formula for the neutron radiative capture cross section in the framework of a statistical model approach to nuclear reactions. Based on this formula, new systematics are established between the (n, γ) reaction cross section and the energy level density of a compound nucleus or a relative neutron excess of an even-even target nucleus for neutron incident energy above the resonance region to MeV. Good agreement with experimental data suggests that this new systematical law is helpful to anal...
【英文摘要】
We have derived a formula for the neutron radiative capture cross section in the framework of a statistical model approach to nuclear reactions. Based on this formula, new systematics are established between the (n, γ) reaction cross section and the energy level density of a compound nucleus or a relative neutron excess of an even-even target nucleus for neutron incident energy above the resonance region to MeV. Good agreement with experimental data suggests that this new systematical law is helpful to anal...
【基金】
Supported by National Natural Science Foundation of China (10475068, 10535010, 10775068, 10865004, 10905029, 11065005,11105079);
973 National Major State Basic Research and Development of China (2007CB815004, 2010CB327803);
China Postdoctoral Science Foundation (20100480017)
【更新日期】
2012-03-31
【分类号】
O571.413
【正文快照】
1 Introduction Neutron radiative capture reaction is an im- portant electromagnetic probe for studying highly- excited nuclei. It provides data for studying collective excitations in a strongly interacting many-body sys- tem such as Giant Resonances [1, 2
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