High energy neutrino yields from astrophysical sources I: Weakly magnetized sources

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dc.creatorKachelriess, M.
dc.creatorTomas, R.
dc.date2006-06-16
dc.date2006-09-04
dc.date.accessioned2026-07-07T12:16:27Z
dc.date.available2026-07-07T12:16:27Z
dc.descriptionWe calculate the yield of high energy neutrinos produced in astrophysical sources with negligible magnetic fields varying their interaction depth from nearly transparent to opaque. We take into account the scattering of secondaries on background photons as well as the direct production of neutrinos in decays of charm mesons. If multiple scattering of nucleons becomes important, the neutrino spectra from meson and muon decays are strongly modified with respect to transparent sources. Characteristic for neutrino sources containing photons as scattering targets is a strong energy-dependence of the ratio $R^0$ of $ν_μ$ and $ν_e$ fluxes at the sources, ranging from $R^0=ϕ_μ/ϕ_e\sim 0$ below threshold to $R^0\sim 4$ close to the energy where the decay length of charged pions and kaons equals their interaction length on target photons. Above this energy, the neutrino flux is strongly suppressed and depends mainly on charm production.
dc.description10 pages, 16 figures, references added, matches published version
dc.identifierhttps://arxiv.org/abs/astro-ph/0606406
dc.identifierhttp://arxiv.org/abs/astro-ph/0606406
dc.identifierPhys.Rev.D74:063009,2006
dc.identifierdoi:10.1103/PhysRevD.74.063009
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211807
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleHigh energy neutrino yields from astrophysical sources I: Weakly magnetized sources
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