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Sensitivity to $\theta_{13}$ and $\delta$ in the Decaying Astrophysical Neutrino Scenario
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abstract
We have previously shown that the decay of high-energy neutrinos from distant astrophysical sources would be revealed by flavor ratios that deviate strongly from the $\phi_{\nu_e}:\phi_{\nu_\mu}:\phi_{\nu_\tau} = 1:1:1$ expected from oscillations alone. Here we show that the deviations are significantly larger when the mixing angle $\theta_{13}$ and the CP phase $\delta$ are allowed to be nonzero. If neutrinos decay, this could allow measurement of $\theta_{13}$ and $\delta$ in IceCube and other near-term neutrino telescopes.
Forward citations
Cited by 2 Pith papers
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Are neutrinos Majorana? Fixed-target and high-energy astrophysical searches decide
Correlated HNL discovery at SHiP and flavor ratio shifts in astrophysical neutrinos at telescopes would establish neutrinos as Majorana fermions.
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