Resonant Absorption of Cosmic-Ray Neutrinos by the Relic-Neutrino Background

T. Weiler

doi:10.1103/PhysRevLett.49.234

Resonant Absorption of Cosmic-Ray Neutrinos by the Relic-Neutrino Background

T. Weiler

Phys. Rev. Lett. 49, 234 – Published 19 July 1982

Abstract

Within the framework of standard big-bang cosmology and the standard electroweak model, it is shown that $ν \bar{ν}$ annihilation on the $Z$ resonance is the only cosmic-ray process sensitive to relic neutrinos. For massive ( $m_{ν} ≳ 10^{- 3}$ eV) neutrinos originating from a $z \sim 3$ red-shifted source, a 15% to 50% absorption dip is predicted at $E_{ν} \sim 10^{11}$ GeV.

Received 22 February 1982

DOI:https://doi.org/10.1103/PhysRevLett.49.234

Authors & Affiliations

T. Weiler

Stanford Linear Accelerator Center, Stanford University, Stanford, California 94305, and Physics Department, University of California, San Diego, La Jolla, California 92093