# Enhancement of low-mass dileptons in ultraperipheral collisions

@article{Dremin2020EnhancementOL,
title={Enhancement of low-mass dileptons in ultraperipheral collisions},
author={I. M. Dremin and Sergey Gevorkyan and D. Madigozhin},
journal={The European Physical Journal C},
year={2020},
volume={81}
}
• Published 30 August 2020
• Physics
• The European Physical Journal C
It is shown that production of low-mass e+e-\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$e^+e^-$$\end{document}-pairs in ultraperipheral nuclear collisions is enhanced due to the Sommerfeld–Gamow–Sakharov (SGS) factor. This effect is especially strong near the threshold of creation of unbound e+e-\documentclass…
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