Multi-messenger Constraints on a Primordial Black Hole Origin of the KM3-230213A Event

Fuente: arXiv
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Main Author: Perez-Gonzalez, Yuber F.
Format: Preprint
Published: 2026
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author Perez-Gonzalez, Yuber F.
author_facet Perez-Gonzalez, Yuber F.
contents Black holes are expected to end their lifetime in a burst of Hawking radiation, emitting all Standard Model particles at ultra-high energies. The evaporation of a nearby primordial black hole (PBH) has been proposed as an explanation for the high-energy neutrino-like event reported by KM3NeT. Such a scenario requires the source to be extremely close to Earth, implying detectable gamma-ray and cosmic-ray emission. Accounting for the time-dependent field of view of gamma-ray observatories, we find that current experiments should have observed a pre-burst signal, while neutrino telescopes would also detect lower-energy events before the burst. The absence of such multimessenger signals strongly disfavors a PBH origin of the KM3-230213A event in the minimal 4D Schwarzschild scenario.
format Preprint
id arxiv_https___arxiv_org_abs_2605_00565
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Multi-messenger Constraints on a Primordial Black Hole Origin of the KM3-230213A Event
Perez-Gonzalez, Yuber F.
High Energy Astrophysical Phenomena
High Energy Physics - Phenomenology
Black holes are expected to end their lifetime in a burst of Hawking radiation, emitting all Standard Model particles at ultra-high energies. The evaporation of a nearby primordial black hole (PBH) has been proposed as an explanation for the high-energy neutrino-like event reported by KM3NeT. Such a scenario requires the source to be extremely close to Earth, implying detectable gamma-ray and cosmic-ray emission. Accounting for the time-dependent field of view of gamma-ray observatories, we find that current experiments should have observed a pre-burst signal, while neutrino telescopes would also detect lower-energy events before the burst. The absence of such multimessenger signals strongly disfavors a PBH origin of the KM3-230213A event in the minimal 4D Schwarzschild scenario.
title Multi-messenger Constraints on a Primordial Black Hole Origin of the KM3-230213A Event
topic High Energy Astrophysical Phenomena
High Energy Physics - Phenomenology
url https://arxiv.org/abs/2605.00565