α decay in extreme laser fields within a deformed Gamow-like model

Subjects: Physics >> Nuclear Physics submitted time 2023-12-28

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

Abstract： 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.

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