αDecay in extreme laser fields within a deformed Gamow-like model  

作　　者：Qiong Xiao Jun-Hao Cheng Yang-Yang Xu You-Tian Zou Jun-Gang Deng Tong-Pu Yu 

机构地区：[1]Department of Physics,National University of Defense Technology,Changsha 410073,China [2]College of Science,China Three Gorges University,Yichang 443002,China

出　　处：《Nuclear Science and Techniques》2024年第2期131-144,共14页核技术（英文）

基　　金：This work was supported by the National Nature Science Foundation of China(Nos.12375244,12135009);the Science and Technology Innovation Program of Hunan Province(No.2020RC4020);the Hunan Provincial Innovation Foundation for Postgraduate(No.CX20210007);Natural Science Research Project of Yichang City(No.A23-2-028).

摘　　要：In this study, the effect of extreme laser fields on the α decay process of ground-state even–even nuclei was investigated.Using the deformed Gamow-like model, we found that state-of-the-art lasers can cause a slight change in the α decay penetration probability of most nuclei. In addition, we studied the correlation between the rate of change of the α decay penetration probability and angle between the directions of the laser electric field and α particle emission for different nuclei. Based on this correlation, the average effect of extreme laser fields on the half-life of many nuclei with arbitrary α particle emission angles was calculated. The calculations show that the laser suppression and promotion effects on the α decay penetration probability of the nuclei population with completely random α particle-emission directions are not completely canceled.The remainder led to a change in the average penetration probability of the nuclei. Furthermore, the possibility of achieving a higher average rate of change by altering the spatial shape of the laser is explored. We conclude that circularly polarized lasers may be helpful in future experiments to achieve a more significant average rate of change of the α decay half-life of the nuclei population.

关 键 词：αDecay Deformed Gamow-like model HALF-LIVES Extreme laser field Penetration probability 

分 类 号：O571.321[理学—粒子物理与原子核物理]