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Role of hexadecapole deformation of projectile Si-28 in heavy-ion fusion reactions near the Coulomb barrier

机译:射弹SI-28在库仑屏障附近的重离子融合反应中的HexadeCapole变形的作用

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摘要

The vast knowledge regarding the strong influence of quadrupole deformation beta(2) of colliding nuclei in heavy-ion sub-barrier fusion reactions inspires a desire to quest the sensitivity of fusion dynamics to higher order deformations, such as beta(4) and beta(6) deformations. However, such studies have rarely been carried out, especially for deformation of projectile nuclei. In this article, we investigated the role of beta(4) of the projectile nucleus in the fusion of the Si-28 + Zr-92 system. We demonstrated that the fusion barrier distribution is sensitive to the sign and value of the At parameter of the projectile, Si-28, and confirmed that the Si-28 nucleus has a large positive beta(4). This study opens an indirect way to estimate deformation parameters of radioactive nuclei using fusion reactions, which is otherwise difficult because of experimental constraints.
机译:关于重离离子屏障融合反应中的四极孔变形β(2)碰撞核的强烈影响的知识激发了探讨融合动力学对更高阶变形的敏感性,例如β(4)和β( 6)变形。 然而,这种研究很少进行,特别是对于射弹核的变形。 在本文中,我们研究了酶核的β(4)在Si-28 + Zr-92系统的融合中的作用。 我们证明融合阻挡分布对射弹,Si-28的参数的符号和值敏感,并确认Si-28核具有大的阳性β(4)。 本研究开启了使用融合反应估计放射性核的变形参数的间接方法,因为实验约束,否则困难。

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