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

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

2000-12-19

arxiv.org/abs/nucl-th/0012070v2

Nucl.Phys. A693 (2001) 847-860

Physics

Nuclear Physics

Nuclear Theory

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

Scientific paper

10.1016/S0375-9474(01)00812-0

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.

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