Multi-electron SEFs for nuclear reactions involved in advanced stages of stellar evolution

Abstract

Multi-electron screening effects encountered in laboratory astrophysical reactions are investigated by considering the reactants Thomas-Fermi atoms. By means of that model, previous studies are extended to derive the corresponding screening enhancement factor (SEF), so that it takes into account ionization, thermal, exchange and relativistic effects. The present study, by imposing a very satisfactory constraint on the possible values of the screening energies and the respective SEFs, corrects the current (and the future) experimental values of the astrophysical factors associated with nuclear reactions involved in advanced stages of stellar evolution.

13 RevTex pages+6 ps figures; Accepted for publication in Nuclear Physics A

References in corpus (2)

• Atomic effects in astrophysical nuclear reactions
• Screened Coulomb potentials for astrophysical nuclear fusion reactions

Cited by in corpus (4)

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• Parallel algorithm with spectral convergence for nonlinear integro-differential equations
• Application of a new screening model to thermonuclear reactions of the rp process
• Screening enhancement factors for laboratory CNO and rp astrophysical reactions