从使用非线性反应系数的相对论重离子碰撞中U的六角形变形
Hao-Jie Xu1,2,3, Jie Zhao3,4, Fuqiang Wang1,2,5
1School of Science, <a href="https://ror.org/04mvpxy20">Huzhou University</a>, Huzhou, Zhejiang 313000, China.
Physical review letters
|July 12, 2024
概括
研究人员发现了一种新方法来测量238核的十六角形变形 (β4). 这种技术使用重离子碰撞,对原子核不敏感.
科学领域:
- 核物理 核物理 核物理
- 高能物理 高能物理
- 量子色态动力学 量子色态动力学
背景情况:
- 由于四极变形 (β2) 的干扰,难以测量-238 (238U) 原子核的十六极变形 (β4).
- 现有的核电转换测量被主要的四极效应所压倒,阻止了β4的确定.
研究的目的:
- 为了确定一种新型可观察物,它仅对238U的十六极形变形 (β4) 敏感.
- 在重离子碰撞实验中提出测量238U的β4的方法.
主要方法:
- 理论分析确定了六十个角的异质性对碰撞圆性的非线性反应.
- 最先进的水力动力学计算模拟相对论的- (U+U) 碰撞.
主要成果:
- 在相对论U+U碰撞中,十六极异性表现出对碰撞圆性的非线性反应.
- 这种非线性反应对β4具有独特的敏感性,并且独立于β2.
结论:
- 鉴定出的非线性反应为实验确定238U的十六角形变形提供了一条途径.
- 未来的RHIC重离子碰撞实验可以探测238U的β4.4.
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