English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We revisit the signatures of the Glashow resonance process $\bar{\nu}_e e \toW$ in the high-energy astrophysical neutrino observatory IceCube. We note thatin addition to the standard hadronic and electromagnetic showers produced by anincoming neutrino at the resonance energy of $E_\nu \approx 6.3$ PeV, there aretwo 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 (theratio of the resonant to concurrent non-resonant processes) are calculated foreach type of interaction, based on current flux limits on the diffuse neutrinoflux. Because of the low background in the neighborhood of the resonance, theobservation of only one pure muon or contained lollipop event essentiallysignals discovery of the resonance, even if the expected event numbers aresmall. We also evaluate the total event rates of the Glashow resonance from theextra-galactic diffuse neutrino flux and emphasize its utility as a discoverytool to enable first observations of such a flux. We find that one can expect3.6 (0.65) events per year for a pure $pp$ ($p\gamma$) source, along with anadded contribution of 0.51 (0.21) from non-resonant events. We also giveresults as a function of the ratio of $pp$ vs $p\gamma$ sources.

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