Assessment of saddle-point-mass predictions for astrophysical applications
نویسندگان
چکیده
Using available experimental data on fission barriers and ground-state masses, a detailed study of the predictions of different models concerning the isospin dependence of saddle-point masses is performed. Evidence is found that several macroscopic models yield unrealistic saddle-point masses for very neutron-rich nuclei, which are relevant for the rprocess nucleosynthesis.
منابع مشابه
ارائه یک روش نوین برای محاسبه نوترونهای گسیلی پیش نقطه زینی در واکنشهای شکافت القایی با یون سنگین
The number of neutrons emitted by compound nucleus before reaching the saddle-point ( ν pre) is calculated for 16 8 O+20882Pb , 12 6 C+23692U , 11 5 B+23793Np and 18 8 O+19779Au , h eavy-ion induced fission reaction systems. The behavior of angular anisotropies of fission fragments is normal for 16 8 O+20882Pb and 18 8 O+19779Au reaction systems, since the targets have spherical shapes. For th...
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