Neutrinos: the Key to UHE Cosmic Rays

Details Neutrinos: the Key to UHE Cosmic Rays Neutrinos: the Key to UHE Cosmic Rays

2005-02-11

arxiv.org/abs/astro-ph/0502244v2

Phys.Rev.Lett.95:141101,2005

Astronomy and Astrophysics

Astrophysics

three pages, three figures. corrected typos

Scientific paper

10.1103/PhysRevLett.95.141101

Observations of ultrahigh energy cosmic rays (UHECR) do not uniquely determine both the injection spectrum and the evolution model for UHECR sources - primarily because interactions during propagation obscure the early Universe from direct observation. Detection of neutrinos produced in those same interactions, coupled with UHECR results, would provide a full description of UHECR source properties.

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