Determining the lifetime of long-lived particles at the HL-LHCShankha Banerjee, Biplob Bhattacherjee, Andreas Goudelis, Björn Herrmann, Dipan Sengupta and Rhitaja SenguptaEur. Phys. J. C, 81 2 (2021) 172DOI: https://doi.org/10.1140/epjc/s10052-021-08945-9