14–24 Jul 2025
CICG - International Conference Centre - Geneva, Switzerland
Europe/Zurich timezone

KM3NeT/ARCA Stacking Search for Ultra-Luminous Infrared Galaxies

21 Jul 2025, 17:05
15m
Room A

Room A

Talk Neutrino Astronomy & Physics NU

Speaker

Antonio De Benedittis (INFN - National Institute for Nuclear Physics)

Description

KM3NeT/ARCA is a Cherenkov neutrino telescope currently under construction in the Mediterranean Sea, at 100 km off the Sicilian coast, near Capo Passero, and at about 3500 m depth.
On its final configuration, the detector will consist of a cubic kilometer volume of seawater instrumented with light detectors. Now, 33 detector units have been already deployed and are taking data. In this contribution, we search for neutrinos from a catalogue of 75 Ultra-Luminous Infrared Galaxies (ULIRGs), considering the latest experiment data. We not only perform a single source search along the catalogue but also conduct a binned likelihood stacking search. We present our unblinded results compared with the latest theoretical predictions from these sources discussing their role as potential neutrino emitters. We also exploit these results to quantitatively constrain the
entire source population contribution to the diffuse neutrino flux measured by the IceCube collaboration.

Collaboration(s) KM3NeT

Authors

Antonio Ambrosone (Gran Sasso Science Institute) Antonio De Benedittis (INFN - National Institute for Nuclear Physics) Antonio Marinelli (Università di Napoli, Federico II) Pasquale Migliozzi (INFN - Napoli) Walid Idrissi Ibnsalih

Presentation materials