TY - JOUR
T1 - Enhancement of the ν̄e flux from astrophysical sources by two-photon annihilation interactions
AU - Razzaque, Soebur
AU - Mészáros, Peter
AU - Waxman, Eli
PY - 2006
Y1 - 2006
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevD.73.103005
DO - 10.1103/PhysRevD.73.103005
M3 - Article
AN - SCOPUS:33646857669
SN - 1550-7998
VL - 73
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 10
M1 - 103005
ER -