Complex-energy analysis of the proton-proton fusion

@article{Gaspard2019ComplexenergyAO,
title={Complex-energy analysis of the proton-proton fusion},
author={David Gaspard and J. Sparenberg and Quentin Wenda and D. Baye},
journal={arXiv: Nuclear Theory},
year={2019}
}

A novel analysis of the astrophysical $S$ factor of the proton-proton weak capture ($\mathrm{p}+\mathrm{p}\rightarrow {}^2\mathrm{H}+\mathrm{e}^++\nu_{\mathrm{e}}$) is performed on a large energy range covering solar-core and early Universe temperatures. The measurement of $S$ being physically unachievable, its value relies on the theoretical calculation of the matrix element $\Lambda$. Surprisingly, $\Lambda$ reaches a maximum near $0.13~\mathrm{MeV}$ that has been unexplained until now. To… Expand