Ponente
Descripción
On February 13 2023, at 01:16:46 UTC, the KM3NeT/ARCA neutrino telescope detected the $\sim 220$ PeV neutrino candidate KM3-230213A. Remarkably, the Yangbajing muon telescope in Tibet recorded a simultaneous burst of muons, showing a 5.7σ excess from a compatible direction. The burst exhibits a statistically significant exponential time profile, with a decay constant of τ = 7.0 ± 1.5 minutes, a peak flux of 55 ± 10 Hz/m², and a total of 2300 ± 400 excess events detected over 30 minutes.
Assuming a common source characterized by a spectrum $\propto E^{-3.2}$, typical of $\sim 200$ PeV cosmic rays, the observed low-energy muon excess appears consistent with the single high-energy neutrino event. These findings suggest the possible presence of a transient astrophysical source and highlight the importance of correlating data from surface muon detectors with neutrino telescopes to strengthen the discovery potential in high-energy astrophysics
