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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We show that high-energy astrophysical neutrinos produced in the cores ofheavily obscured active galactic nuclei (AGNs) can undergo strong mattereffects, thus significantly influencing their source flavor ratios. Inparticular, matter effects can completely modify the standard interpretation ofthe flavor ratio measurements in terms of the physical processes occurring inthe sources (e.g., $pp$ versus $p\gamma$, full pion-decay chain versusmuon-damped pion decay). We contrast our results with the existing flavor ratiomeasurements at IceCube, as well as with projections for next-generationneutrino telescopes like IceCube-Gen2. Signatures of these matter effects inneutrino flavor composition would not only bring more evidence for neutrinoproduction in central AGN regions, but would also be a powerful probe ofheavily Compton-thick AGNs, which escape conventional observation in $X$-raysand other electromagnetic wavelengths.

Flavor Matters, but Matter Flavors: Matter Effects on Flavor Composition of Astrophysical Neutrinos