PeV cosmic rays: A window on the leptonic era?

Richard Wigmans

doi:10.1016/S0927-6505(02)00242-6

PeV cosmic rays: A window on the leptonic era?

Richard Wigmans

Physics

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39 Scopus citations

Abstract

It is shown that a variety of characteristic features of the high-energy hadronic cosmic-ray spectra, in particular the abrupt changes in the spectral index that occur around 3 and 300 PeV, as well as the corresponding changes in elemental composition that are evident from kinks in the 〈X_max〉 distribution, can be explained in great detail from interactions with relic Big Bang antineutrinos, provided that the latter have a rest mass of ∼0.5 eV/c².

Original language	English
Pages (from-to)	379-392
Number of pages	14
Journal	Astroparticle Physics
Volume	19
Issue number	3
DOIs	https://doi.org/10.1016/S0927-6505(02)00242-6
State	Published - Jun 2003

Keywords

Cosmic rays
Knee
Neutrino mass
Relic neutrinos

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10.1016/S0927-6505(02)00242-6

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title = "PeV cosmic rays: A window on the leptonic era?",

abstract = "It is shown that a variety of characteristic features of the high-energy hadronic cosmic-ray spectra, in particular the abrupt changes in the spectral index that occur around 3 and 300 PeV, as well as the corresponding changes in elemental composition that are evident from kinks in the 〈Xmax〉 distribution, can be explained in great detail from interactions with relic Big Bang antineutrinos, provided that the latter have a rest mass of ∼0.5 eV/c2.",

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AB - It is shown that a variety of characteristic features of the high-energy hadronic cosmic-ray spectra, in particular the abrupt changes in the spectral index that occur around 3 and 300 PeV, as well as the corresponding changes in elemental composition that are evident from kinks in the 〈Xmax〉 distribution, can be explained in great detail from interactions with relic Big Bang antineutrinos, provided that the latter have a rest mass of ∼0.5 eV/c2.

KW - Cosmic rays

KW - Knee

KW - Neutrino mass

KW - Relic neutrinos

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ER -

PeV cosmic rays: A window on the leptonic era?

Abstract

Keywords

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