Enhancement of low-mass dileptons in ultraperipheral collisions I. M. Dremin, S. R. Gevorkyan and D. T. Madigozhin Eur. Phys. J. C, 81 4 (2021) 276 Published online: 02 April 2021 DOI: 10.1140/epjc/s10052-021-09053-4