The Glashow resonance at IceCube: signatures, event rates and $pp$ vs. $p\gamma$ interactions

Abstract

We revisit the signatures of the Glashow resonance process ${\bar{\nu }}_{e}e\to W$ in the high-energy astrophysical neutrino observatory IceCube. We note that in addition to the standard hadronic and electromagnetic showers produced by an incoming neutrino at the resonance energy of $E_{\nu }\approx 6.3$ PeV, there are two clear signals of the process: the "pure muon" from ${\bar{\nu }}_{e}e\to {\bar{\nu }}_{\mu }\mu$ and the "contained lollipop" from ${\bar{\nu }}_{e}e\to {\bar{\nu }}_{\tau }\tau$. The event rate and the signal-to-background ratio (the ratio of the resonant to concurrent non-resonant processes) are calculated for each type of interaction, based on current flux limits on the diffuse neutrino flux. Because of the low background in the neighborhood of the resonance, the observation of only one pure muon or contained lollipop event essentially signals discovery of the resonance, even if the expected event numbers are small. We also evaluate the total event rates of the Glashow resonance from the extra-galactic diffuse neutrino flux and emphasize its utility as a discovery tool to enable first observations of such a flux. We find that one can expect 3.6 (0.65) events per year for a pure $pp$ ($p\gamma$) source, along with an added contribution of 0.51 (0.21) from non-resonant events. We also give results as a function of the ratio of $pp$ vs $p\gamma$ sources.

18 pages, 9 figures; the references are updated

References in corpus (14)

• Where we are on ${\theta }_{13}$: addendum to "Global neutrino data and recent reactor fluxes: status of three-flavour oscillation parameters"
• Flavor Composition and Energy Spectrum of Astrophysical Neutrinos
• Observational Constraints on the Ultra-high Energy Cosmic Neutrino Flux from the Second Flight of the ANITA Experiment
• Flavor Ratios of Astrophysical Neutrinos: Implications for Precision Measurements
• Energy dependent neutrino flavor ratios from cosmic accelerators on the Hillas plot
• Testing neutrino flavor mixing plus decay with neutrino telescopes
• Search for a diffuse flux of high-energy ${\nu }_{\mu }$ with the ANTARES neutrino telescope
• An Analysis of Cosmic Neutrinos: Flavor Composition at Source and Neutrino Mixing Parameters
• Neutrino Telescopes as a Probe of Broken $\mu$-$\tau$ Symmetry
• Neutrino Flavor Goniometry by High Energy Astrophysical Beams
• Probing CP violation in neutrino oscillations with neutrino telescopes
• Testing the Bimodal/Schizophrenic Neutrino Hypothesis in Neutrinoless Double Beta Decay and Neutrino Telescopes
• Probing neutrino mixing angles with ultrahigh energy neutrino telescopes
• IceCube Science

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