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A simple description of the temperature dependence of the width of the fission-fragment mass yield in 197Au and 209Bi at intermediate energies

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摘要 A simple approach is proposed to describe the experimental data for the widths of the fission-fragment mass yields in 197Au and 209Bi at low and intermediate energies. The approach is based on the expressions for the temperature dependence of the width of the fission-fragment mass yield and the mass of the most probable fragment. The expression for the width of the fission-fragment mass yield depends on the mass of the most probable fragment, the surface terms of the energy level density parameter, the temperature and the stiffness parameter of the potential related to mass-asymmetric degree of freedom. It is shown that the contribution of the surface term of the energy level density parameter is important for describing the experimental data in a wide range of energies.
出处 《中国物理C:英文版》 SCIE CAS CSCD 2019年第1期91-95,共5页 Chinese Physica C
作者简介 V.Yu.Denisov,E-mail:denisov@kinr.kiev.ua.
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