Towards the optimal beam dump experiment to search for feebly interacting particlesKyrylo Bondarenko, Alexey Boyarsky, Richard Jacobsson, Oleksii Mikulenko and Maksym OvchynnikovEur. Phys. J. C, 83 12 (2023) 1126DOI: https://doi.org/10.1140/epjc/s10052-023-12249-5