Cosmic Background Rejection of the ICARUS experiment at Fermilab

ICARUS-T600 is a LArTPC with a total mass of 760 tons of liquid argon, located at Fermilab along the Booster Neutrino Beam (BNB) at 600 m from the neutrino source, and 6°off-axis the Neutrino from the Main Injector (NuMI) beamline.ICARUS will search for evidence of sterile neutrinos within the Short-Baseline Neutrino program.In addition it will perform measurement of neutrino cross-sections with the NuMI beam and Beyond Standard Model searches.Being installed at shallow depth, ICARUS is exposed to a large flux of cosmic rays, which, if in time with the neutrino beam, could determine an event trigger, and, eventually, they could mimic a neutrino interaction.The expected rates of cosmic ray induced events and neutrino interactions are:• 1 every 180 / 53 spills for BNB (1.6 ) / NuMI (9.6 );• 1 cosmic every 55 / 6 spills for BNB (1.6 ) / NuMI (9.6 ).No CRT match 39.0 12.7 32.4 12.3