Ultrahigh energy neutrinos from high-redshift electromagnetic cascades

Esmaeili, Amirfarzan; Capanema, Antonio; Esmaili, Arman; Serpico, Pasquale Dario

doi:10.1103/physrevd.106.123016

Cited by 2 publications

(1 citation statement)

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“…Photohadronic collisions lead to the production of so-called cosmogenic neutrinos in the EeV energy range [251][252][253][254][255][256], and at the same time they cause a suppression of the UHECR flux, the Greizen-Zatsepin-Kuzmin (GZK) cutoff [257][258][259]. Recently, the contribution of leptonic processes has been proposed to lead to neutrino production at high redshifts if the center-of-mass energy for CR-photon collision is large enough to produce muons [260][261][262][263].…”

Section: Cosmogenic Neutrinosmentioning

confidence: 99%

High-Energy and Ultra-High-Energy Neutrino Astrophysics

Fiorillo

2024

Universe

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The origin of high-energy cosmic rays, and their behavior in astrophysical sources, remains an open question. Recently, new ways to address this question have been made possible by the observation of a new astrophysical messenger, namely neutrinos. The IceCube telescope has detected a diffuse flux of astrophysical neutrinos in the TeV-PeV energy range, likely produced in astrophysical sources accelerating cosmic rays, and more recently it has reported on a few candidate individual neutrino sources. Future experiments will be able to improve on these measurements quantitatively, by the detection of more events, and qualitatively, by extending the measurement into the EeV energy range. In this paper, we review the main features of the neutrino emission and sources observed by IceCube, as well as the main candidate sources that could contribute to the diffuse neutrino flux. As a parallel question, we review the status of high-energy neutrinos as a probe of Beyond the Standard Model physics coupling to the neutrino sector.

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