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 calculate the atmospheric neutrino fluxes in the energy range $100$ GeV --$10$ PeV with the use of several known hadronic models and a fewparametrizations of the cosmic ray spectra which take into account the knee.The calculations are compared with the atmospheric neutrino measurements byFrejus, AMANDA, IceCube and ANTARES. An analytic description is presented forthe conventional ($\nu_\mu+\bar\nu_\mu$) and ($\nu_e+\bar\nu_e$) energyspectra, averaged over zenith angles, which can be used to obtain test data ofthe neutrino event reconstruction in neutrino telescopes. The sum of thecalculated atmospheric $\nu_\mu$ flux and the IceCube best-fit astrophysicalflux gives the evidently higher flux as compared to the IceCube59 data, givingrise the question concerning the hypothesis of the equal flavor composition ofthe high-energy astrophysical neutrino flux. Calculations show that thetransition from the atmospheric electron neutrino flux to the predominance ofthe astrophysical neutrinos occurs at $30-100$ TeV if the prompt neutrinocomponent is taken into consideration. The neutrino flavor ratio, extractedfrom the IceCube data, does not reveal the trend to increase with the energy asis expected for the conventional neutrino flux in the energy range $100$ GeV -$30$ TeV. A depression of the ratio $R_{\nu_\mu/\nu_e}$ possibly indicates thatthe atmospheric electron neutrino flux obtained in the IceCube experimentcontains an admixture of the astrophysical neutrinos in the range $10-50$ TeV.

High-energy neutrino fluxes and flavor ratio in the Earth's atmosphere