BibTeX
@MISC{Gruzinov_screeningin,
author = {Andrei Gruzinov and John N. Bahcall},
title = {Screening in Thermonuclear Reaction Rates in the Sun},
year = {}
}
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Abstract
We evaluate the effect of electrostatic screening by ions and electrons on low-Z thermonuclear reactions in the sun. We use a mean field formalism and calculate the electron density of the screening cloud using the appropriate density matrix equation of quantum statistical mechanics. Because of well understood physical effects that are included for the first time in our treatment, the calculated enhancement of reaction rates does not agree with the frequently used interpolation formulae. Our result does agree, within small uncertainties, with Salpeter's weak screening formula. If weak screening is used instead of the commonly employed screening prescription of Graboske et al., the predicted 8 B neutrino flux is increased by 7% and the predicted chlorine rate is increased by 0.4 SNU. Subject headings: nuclear reactions 1. Introduction In recent years, an increasing amount of attention has been devoted to calculating more accurately the effects on the rates of solar fusion reactions o...
Keyphrases
thermonuclear reaction interpolation formula weak screening predicted chlorine rate electrostatic screening neutrino flux screening cloud recent year low-z thermonuclear reaction calculated enhancement electron density nuclear reaction reaction rate appropriate density matrix equation understood physical effect quantum statistical mechanic solar fusion reaction subject heading first time mean field formalism small uncertainty
