Non-radiative synthesis of Be7 in solar plasma
Abstract
The nuclear reaction e + He3 + He4 ---> e + Be7 is considered at thermonuclear energies. The motion of the electron is treated within the adiabatic approximation and the He3-He4 scattering state is calculated using an effective He3-He4 potential constructed via the Marchenko inverse scattering method. The reaction rate thus obtained for solar interior conditions is approximately 10^{-4} of the corresponding rate for the radiative capture He3 + He4 ----> Be7 + gamma. However, at the conditions corresponding to the early stages of the primordial nucleosynthesis, the non-radiative fusion is five times faster than the radiative one. The importance of the non-radiative processes for the energy balance in the sun, which for electrons is totally opaque, is discussed.
Keywords
Cite
@article{arxiv.nucl-th/9804020,
title = {Non-radiative synthesis of Be7 in solar plasma},
author = {N. V. Shevchenko and S. A. Rakityansky and S. A. Sofianos and V. B. Belyaev},
journal= {arXiv preprint arXiv:nucl-th/9804020},
year = {2008}
}
Comments
16 pages, RevTex, LaTex-pseudo-figures are included