Local even–odd effect based on the number of configurations of pre-formed and formed fragmentations in a fissioning nucleus

摘要: Abstract The present paper proposes a modeling of the local even–odd effect based on number configurations in nucleus undergoing fission at two stages along its path. One is fissioning stage just after passing through outer saddle point when fragments are considered as pre-formed and intrinsic energy not yet shared. other end path scission imminent. Then already partitioned completely formed. probability that fragmentation arrives (i.e. scission) formed expressed by ratio to one fragmentation. defined half difference between these normalized ratios corresponding even-Z odd-Z fragmentations. Both numbers nucleus, which formed, calculated using level densities described constant temperature function (justified small values before scission). obtained results describe well experimental data, including increase asymmetry fragmentations magic or double Z H = 50 and/or N 82 very asymmetric L 28 ).