Vacuum Polarization Contribution to the Astrophysical S - Factor
نویسندگان
چکیده
We study the effect of vacuum polarization in nuclear reactions of astrophys-ical interest. This effect has the opposite sign compared to the screening by the atomic electrons. It is shown that vacuum polarization further increases the longstanding differences between the experimental data of astrophysical nuclear reactions at very low energies and the theoretical calculations which aim to include electron screening, albeit by a small amount.
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