Year: 2005
Type: article
Abstract: We propose a method to investigate the scenario that cosmic relic neutrinos are highly clustered around stars and galaxies, or dark-matter clusters, rather than uniformly distributed in the universe. Such a scenario can be detected or constrained by the interaction of high-energy cosmic ray protons and nuclei with the cosmic neutrinos. There should be an observable signature in the energy spectra of cosmic ray protons and nuclei for a neutrino clustering factor beyond 10 13 . We provide a relation on the signature onset positions between proton and nuclei spectra, and discuss possible support from existing experiments. It is also suggested that the relative abundance of cosmic ray nuclei may detect or constrain the cosmic neutrinos with smaller clustering.
Source: New Journal of Physics
Authors: W-Y P Hwang, Bo-Qiang Ma
Institutions: National Taiwan University, Peking University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,610
Awards: G1340856320, G2866701573
OpenAlex ID: W2058528368