Determination of Absolute Neutrino Masses from Bursts of Z Bosons in Cosmic Rays

Z. Fodor, S. D. Katz, A. Ringwald

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Ultrahigh energy neutrinos [Formula presented] scatter on relic neutrinos [Formula presented] producing Z bosons, which can decay hadronically producing protons (Z burst). We compare the predicted proton spectrum with the observed ultrahigh energy cosmic ray (UHECR) spectrum and determine the mass of the heaviest [Formula presented] via a maximum likelihood analysis. Our prediction depends on the origin of the powerlike part of the UHECR spectrum: [Formula presented] for Galactic halo and [Formula presented] for extragalactic origin. The necessary [Formula presented] flux should be detected in the near future.

Original languageEnglish (US)
Pages (from-to)4
Number of pages1
JournalPhysical review letters
Volume88
Issue number17
DOIs
StatePublished - 2002

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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