Evaporating Primordial Black Holes in Gamma Ray and Neutrino Telescopes

Understand

A primordial black hole in the last stages of evaporation and located in the local neighborhood can produce a detectable signal in gamma ray and neutrino telescopes.

• We re-evaluate the expected gamma ray and neutrino fluxes from these transient point events and discuss the consequences for existing constraints.
• For gamma rays we improve the current bounds by a factor of few, while for neutrinos we obtain significantly different results than the existing literature.
• The capability and advantages of neutrino telescopes in the search for primordial black holes is discussed thoroughly.