The KM3NeT/ARCA neutrino detector is currently under construction at 3500 mdepth offshore Capo Passero, Sicily, in the Mediterranean Sea. The main scienceobjectives are the detection of high-energy cosmic neutrinos and the discoveryof their sources. Simulations were conducted for the full KM3NeT/ARCA detector,instrumenting a volume of 1 km$^3$, to estimate the sensitivity and discoverypotential to point-like neutrino sources and an all-sky diffuse neutrino flux.This paper covers the reconstruction of track- and shower-like signatures, aswell as the criteria employed for neutrino event selection. By leveraging boththe track and shower observation channels, the KM3NeT/ARCA detectordemonstrates the capability to detect the diffuse astrophysical neutrino fluxwithin half a year of operation, achieving a 5$\sigma$ statisticalsignificance. With an angular resolution below 0.1$^\circ$ for tracks and under2$^\circ$ for showers, the sensitivity to point-like neutrino sources surpassesexisting observed limits across the entire sky.
Astronomy potential of KM3NeT/ARCA
S. Cherubini;I. Tosta e Melo;
2024-01-01
Abstract
The KM3NeT/ARCA neutrino detector is currently under construction at 3500 mdepth offshore Capo Passero, Sicily, in the Mediterranean Sea. The main scienceobjectives are the detection of high-energy cosmic neutrinos and the discoveryof their sources. Simulations were conducted for the full KM3NeT/ARCA detector,instrumenting a volume of 1 km$^3$, to estimate the sensitivity and discoverypotential to point-like neutrino sources and an all-sky diffuse neutrino flux.This paper covers the reconstruction of track- and shower-like signatures, aswell as the criteria employed for neutrino event selection. By leveraging boththe track and shower observation channels, the KM3NeT/ARCA detectordemonstrates the capability to detect the diffuse astrophysical neutrino fluxwithin half a year of operation, achieving a 5$\sigma$ statisticalsignificance. With an angular resolution below 0.1$^\circ$ for tracks and under2$^\circ$ for showers, the sensitivity to point-like neutrino sources surpassesexisting observed limits across the entire sky.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.