The ICARUS Experiment

Abstract

The 760-ton ICARUS T600 detector has completed a successful three-year physics run at the underground LNGS laboratories, searching for atmospheric neutrino interactions and, with the CNGS neutrino beam from CERN, performing a sensitive search for LSND-like anomalous ν e appearance, which contributed to constraining the allowed parameters to a narrow region around ∆m 2 ∼ eV 2 , where all the experimental results can be coherently accommodated at 90% C.L. The T600 detector underwent a significant overhaul at CERN and has now been moved to Fermilab, to be soon exposed to the Booster Neutrino Beam (BNB) to search for sterile neutrinos within the SBN program, devoted to definitively clarifying the open questions of the presently-observed neutrino anomalies. This paper will address ICARUS's achievements, its status, and plans for the new run and the ongoing analyses, which will be finalized for the next physics run at Fermilab.

Can strangelets be detected in a large LAr neutrino detector?

“…A distinct problem is the capability of these detectors to discriminate between the signals of interest and the background. In accord with Farnese [56], ICARUS Collaboration JCAP11(2021)040 has estimated the background value to be around dE/dx 2.1 MeV/cm. Thus, a clear discrimination between the considered strangelets and the background can be done.…”

Flavor-dependent radiative corrections in coherent elastic neutrino-nucleus scattering

“…This new way of detecting neutrinos has attracted a great deal of attention from the high-energy community. The possibility of doing neutrino physics with relatively small detectors in the kg [5][6][7][8][9] to tonne [10][11][12][13] scale, as opposed to 100-tonne [14][15][16][17] or even JHEP02(2021)097 kiloton detectors [14,15,18], opens up the possibility of competitively measuring neutrino properties with small-scale projects [6,8,[19][20][21]. CEνNS provides an unavoidable background floor for dark matter direct detection [22][23][24][25][26][27][28][29][30][31][32][33][34][35].…”

Sensitivity of accelerator-based neutrino experiments to neutrino-electron scattering radiative corrections

“…The short-baseline neutrino program at Fermilab might as well be another configuration to study these effects. In particular, SBND [29,30] and ICARUS [31,32] are expected to take data in the near future, and a dedicated program to measure neutrino electron scattering may be of interest.…”