Dynamic Screening in Thermonuclear Reactions

Abstract

It has recently been argued that there are no dynamic screening corrections to Salpeter's enhancement factor in thermonuclear reactions, in the weak-screening limit. The arguments used were: 1) The Gibbs probability distribution is factorable into two parts, one of which, $exp(-\beta \sum e_i{e}_j/r_{ij})$ ($\beta =1/k_{B}T$), is independent of velocity space; and 2) The enhancement factor is $w=1+{\beta }^2{e}^2{Z}_1{Z}_2<{\varphi }^2>$ with ${<{\varphi }^2>}_k={<E^2>}_k/k^2$ and ${<E^2>}_k/(8\pi )=(T/2)[1-{\epsilon }^{-1}(0,k)]$. We show that both of these arguments are incorrect.

Accepted for publication in The Astrophysical Journal

References in corpus (8)

• Screening in Thermonuclear Reaction Rates in the Sun
• The Be-7 Electron Capture Rate in the Sun
• On electrostatic screening of ions in astrophysical plasmas
• Was The Electromagnetic Spectrum A Blackbody Spectrum In The Early Universe?
• Dynamic Screening and Thermonuclear Reaction Rates
• Nuclear Electron Capture in a Plasma
• The Magnetic Field Spectrum in a Plasma in Thermal Equilibrium in the Epoch of Primordial Nucleosynthesis
• The Energy of a Plasma in the Classical Limit

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• Dynamical Screening Effects on Big Bang Nucleosynthesis
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• Self-consistent strong screening applied to thermonuclear reactions
• Magnetic Effect on Potential Barrier for Nucleosynthesis II
• Quarks to Cosmos: Particles and Plasma in Cosmological evolution