Measuring flavor ratios of high-energy astrophysical neutrinos

  title={Measuring flavor ratios of high-energy astrophysical neutrinos},
  author={John F. Beacom and Nicole F. Bell and Dan Hooper and Sandip Pakvasa and Thomas J. Weiler},
  journal={Physical Review D},
We discuss the prospects for next generation neutrino telescopes, such as IceCube, to measure the flavor ratios of high-energy astrophysical neutrinos. The expected flavor ratios at the sources are $\phi_{\nu_e}:\phi_{\nu_{\mu}}:\phi_{\nu_{\tau}} = 1:2:0$, and neutrino oscillations quickly transform these to $1:1:1$. The flavor ratios can be deduced from the relative rates of showers ($\nu_e$ charged-current, most $\nu_\tau$ charged-current, and all flavors neutral-current), muon tracks ($\nu_… 
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