Enhancement of the ν̄e flux from astrophysical sources by two-photon annihilation interactions

Soebur Razzaque, Peter Mészáros, Eli Waxman

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The ratio of antielectron to total neutrino flux, Φν̄e Φν, expected from pγ interactions in astrophysical sources is ≤1 15. We point out that this ratio is enhanced by the decay of μ+μ- pairs, created by the annihilation of secondary high energy photons from the decay of the neutral pions produced in pγ interactions. We show that, under certain conditions, the Φν̄e Φν ratio may be significantly enhanced in gamma-ray burst (GRB) fireballs, and that detection at the Glashow resonance of ν̄e in kilometer scale neutrino detectors may constrain GRB fireball model parameters, such as the magnetic field and energy dissipation radius.

Original languageEnglish (US)
Article number103005
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume73
Issue number10
DOIs
StatePublished - 2006

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Enhancement of the ν̄e flux from astrophysical sources by two-photon annihilation interactions'. Together they form a unique fingerprint.

Cite this