2021/10/31 by Antonio Capanema, AmirFarzan Esmaeili, Arman Esmaili · 2 citations
Physics and Astronomy · #astro-ph.HE #hep-ph
paper · pdf · doi:10.1088/1475-7516/2021/12/051
published as JCAP12(2021)051 · 17 pages, 7 figures; v2: few clarifications and references added; v3: discussion on rotating PBHs expanded, matches the version published in JCAP
arxiv created 2021/12/22 · arxiv updated 2021/12/24
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. The correlations of gamma ray and neutrino energy and time profiles will be promoted as a powerful tool in identifying the primordial black holes, in case of detection.