Enhancement of the $\barν_e$ flux from astrophysical sources by two photon annihilation interactions

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dc.creatorRazzaque, Soebur
dc.creatorMeszaros, Peter
dc.creatorWaxman, Eli
dc.date2005-09-07
dc.date2006-04-18
dc.date.accessioned2026-07-07T06:41:11Z
dc.date.available2026-07-07T06:41:11Z
dc.descriptionThe ratio of anti-electron to total neutrino flux, $Φ_{\barν_e}:Φ_ν$, expected from $pγ$ interactions in astrophysical sources is $\le1:15$. 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 $Φ_{\barν_e}:Φ_ν$ ratio may be significantly enhanced in gamma-ray burst (GRB) fireballs, and that detection at the Glashow resonance of $\barν_e$ in kilometer scale neutrino detectors may constrain GRB fireball model parameters, such as the magnetic field and energy dissipation radius.
dc.description6 pages, 3 figures, PRD accepted
dc.identifierhttps://arxiv.org/abs/astro-ph/0509186
dc.identifierhttp://arxiv.org/abs/astro-ph/0509186
dc.identifierPhys.Rev. D73 (2006) 103005
dc.identifierdoi:10.1103/PhysRevD.73.103005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/101578
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleEnhancement of the $\barν_e$ flux from astrophysical sources by two photon annihilation interactions
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