2005/09/30 by S. Razzaque, Soebur Razzaque, P. Mészáros +2
Physics and Astronomy · #Annihilation #Astrophysics #Astrophysics and Cosmic Phenomena #Bar (unit) #Energy (signal processing) #Gamma-ray burst #Gamma-ray bursts and supernovae #Neutrino #Neutrino Physics Research #Particle physics #Physics #Quantum mechanics #RADIUS #astro-ph #hep-ph
paper · pdf · doi:10.1103/physrevd.73.103005
published as Phys.Rev. D73 (2006) 103005 · 6 pages, 3 figures, PRD accepted
arxiv created 2006/04/18 · openalex publication_date 2006/05/25 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The ratio of antielectron to total neutrino flux, \ensuremathΦ_\ensuremathνe\ensuremath\mathbin:\ensuremathΦ_\ensuremathν, expected from p\ensuremathγ interactions in astrophysical sources is \ensuremath≤1\ensuremath\mathbin:15. We point out that this ratio is enhanced by the decay of \ensuremathμ+\ensuremathμ^\ensuremath- pairs, created by the annihilation of secondary high energy photons from the decay of the neutral pions produced in p\ensuremathγ interactions. We show that, under certain conditions, the \ensuremathΦ_\ensuremathνe\ensuremath\mathbin:\ensuremathΦ_\ensuremathν ratio may be significantly enhanced in gamma-ray burst (GRB) fireballs, and that detection at the Glashow resonance of \ensuremathνe in kilometer scale neutrino detectors may constrain GRB fireball model parameters, such as the magnetic field and energy dissipation radius.