摘要
In this study,the Pauli blocking potential between two colliding nuclei in the density overlapping regionis applied to describe the heavy nuclei fusion process.Inspired by the Pauli blocking effect in theα-decay of heavynuclei,the Pauli blocking potential of single nucleon from the surrounding matter is obtained.In fusion reactionswith strong density overlap,the Pauli blocking potential between the projectile and target can be constructed using asingle folding model.By considering this potential,the double folding model with a new parameter set is employedto analyze the fusion processes of 95 systems.A wider Coulomb barrier and shallower potential pocket are formed inthe inner part of the potential between the two colliding nuclei,compared to that calculated using the Akyüz-Win-ther potential.The fusion hindrance phenomena at deep sub-barrier energies are described well for fusion systems^(16)O+^(208)Pb and^(58)Ni+^(58)Ni.
作者
程凯旋
许昌
马春旺
普洁
王玉廷
Kai-Xuan Cheng;Chang Xu;Chun-Wang Ma;Jie Pu;Yu-Ting Wang(School of Physics,Henan Normal University,Xinxiang 453007,China;School of Physics,Nanjing University,Nanjing 210008,China)
基金
Supported by the National Natural Science Foundation of China(12105080,11822503,11975091)
the Program for Innovative Research Team(in Science and Technology)in University of Henan Province(21IRTSTHN011),China。