Title: Shell effects on the drift and fluctuation in multinucleon transfer reactions Show Chinese title

Title: 壳效应在多核子转移反应中的漂移和涨落的影响

Abstract: This study employs the dinuclear system model (DNS-sysu) to investigate drift and fluctuation mechanisms in 136Xe + 209Bi collisions above the Coulomb barrier. The DNS-sysu model demonstrated its effectiveness in providing reasonable descriptions of drift and fluctuation dynamics for the multinucleon transfer reaction at low energies. We observe temperature-induced changes in the shell effect, impacting nucleon transfer. At higher energies, the weakening constraint of the potential energy surface leads to a reversal in the evolution direction. Additionally, the consideration of shell corrections notably affects fragment distribution at low energies but diminishes for high-energy conditions. This research provides valuable insights into understanding the macroscopic manifestation of nucleon transfer in the multinucleon transfer reaction. Show Chinese abstract

Abstract: 本研究采用双核系统模型（DNS-sysu）探讨了高于库仑势垒的136Xe + 209Bi碰撞中的漂移和涨落机制。 DNS-sysu模型在合理描述低能多核子转移反应中的漂移和涨落动力学方面表现出有效性。 我们观察到壳效应因温度变化而发生改变，影响了核子转移。 在较高能量下，势能曲面约束的减弱导致演化方向反转。 此外，考虑壳修正显著影响了低能条件下的碎片分布，但在高能条件下影响减小。 本研究为理解多核子转移反应中核子转移的宏观表现提供了有价值的见解。