Screening Effects in Stars and in the Laboratory

被引：12

作者：

Aliotta, Marialuisa ^{[1
]}

Langanke, Karlheinz ^{[2
,3
]}

机构：

[1] Univ Edinburgh, Sch Phys & Astron, Edinburgh, Scotland

[2] GSI Helmholtzzentrum Schwerionenforschung, Darmstadt, Germany

[3] Tech Univ Darmstadt, Inst Kernphys, Theoriezentrum, Darmstadt, Germany

来源：

FRONTIERS IN PHYSICS | 2022年 / 10卷

关键词：

electron screening; stellar plasma; stellar burning; nucleosynthesis; pycno-nuclear reactions; NUCLEAR-REACTION RATES; THERMONUCLEAR REACTION-RATE; WEAK-INTERACTION RATES; TRIPLE-ALPHA-REACTION; EQUATION-OF-STATE; ISOTOPIC DEPENDENCE; DEUTERATED METALS; RATE ENHANCEMENT; FUSION REACTIONS; ELECTRON;

D O I：

10.3389/fphy.2022.942726

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Nuclear reactions are the driver of the evolution of many astrophysical objects. In the astrophysical environment their respective reaction rates are, however, modified due to the presence of other charges. The effects depend on the relative importance of Coulomb energy versus thermal energy and are distinguished between weak and strong screening. In the extreme case of pycnonuclear reactions, fusion reactions can be induced by the zero-point motion of nuclei in a Coulomb crystal. This paper reviews the various screening situations and discusses important applications. We also briefly review laboratory approaches to study screening effects.

引用

页数：9

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