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

In this work, we study the propagation of high energy neutrinos produced inextragalactic sources including the effect of a possible interaction withultralight axion-like particles (UALP) with a mass $m_a\sim 10^{-22} {\rm eV}$as the constituents of dark matter (DM) under the assumption that theircoupling to neutrinos is dominant. We compute the cross section and describethe propagation of a diffuse neutrino flux using transport equations for eachmass eigenstate. This allows us to obtain the neutrino fluxes of the differentflavors to be observed at the Earth with neutrino telescopes under differentassumptions for the flavor composition emitted at the sources and for a normalordering (NO) or an inverted ordering (IO) of the neutrino masses. If thecoupling of neutrinos with UALPs is the same for all flavors ($g_{\nu a}$), wefind that interactions change the flavor composition of neutrinos arriving onEarth for $g_{\nu a}\gtrsim 0.5\,{\rm GeV}^{-1}$, causing the electron(muon)flavor to dominate in the NO(IO) case for neutrino energies above $\sim10^5\,{\rm GeV}$. Although current data on the flavor ratios suggest thatinteractions with UALP DM do not take place within the range of couplingstudied (particularly in the NO case) more data is needed to improve theprecision of the experimentally measured flavor composition.

Neutrino interactions with ultralight axion-like dark matter