Oscillating Neutrinos from the Galactic Center

Details Oscillating Neutrinos from the Galactic Center Oscillating Neutrinos from the Galactic Center

1999-11-16

arxiv.org/abs/astro-ph/9911292v2

Astrophys.J.Suppl. 130 (2000) 339-350

Astronomy and Astrophysics

Astrophysics

45 pages, LaTeX, uses ApJ style, some minor revisions, this final version to be published in ApJS

Scientific paper

10.1086/317350

It has recently been demonstrated that the $\gamma$-ray emission spectrum of the EGRET-identified, central Galactic source 2EG J1746-2852 can be well fitted by positing that these photons are generated by the decay of $\pi^0$'s produced in p-p scattering at or near an energizing shock. Such scattering also produces charged pions which decay leptonically.The ratio of $\gamma$-rays to neutrinos generated by the central Galactic source may be accurately determined and a well-defined and potentially-measurable high energy neutrino flux at Earth is unavoidable. An opportunity, therefore, to detect neutrino oscillations over an unprecedented scale is offered by this source. In this paper we assess the prospects for such an observation with the generation of neutrino \v{C}erenkov telescopes now in the planning stage. We determine that the next generation of detectors may find an oscillation signature in the Galactic Center (GC) signal.

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