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Pis'ma v Zh. Èksper. Teoret. Fiz., 2014, Volume 100, Issue 12, Pages 865–869 (Mi jetpl4493)  

This article is cited in 20 scientific papers (total in 20 papers)


IceCube astrophysical neutrinos without a spectral cutoff and $10^{15}$$10^{17}$ eV cosmic gamma radiation

O. Kalashev, S. V. Troitsky

Institute for Nuclear Research, Russian Academy of Sciences, Moscow

Abstract: We present a range of unbroken power-law fits to the astrophysical-neutrino spectrum consistent with the most recent published IceCube data at the 68 % confidence level. Assuming that the neutrinos originate in decays of $\pi$-mesons, we estimate accompanying gamma-ray fluxes for various distributions of sources, taking propagation effects into account. We then briefly discuss existing experimental results constraining PeV to EeV diffuse gamma-ray flux and their systematic uncertainties. Several scenarios are marginally consistent both with the KASKADE and CASA-MIA upper limits at $10^{15}$$10^{16}$ eV and with the EAS-MSU tentative detection at $\sim 10^{17}$ eV, given large systematic errors of the measurements. Future searches for the diffuse gamma-ray background at sub-PeV to sub-EeV energies just below present upper limits will give a crucial diagnostic tool for distinguishing between the Galactic and extragalactic models of the origin of the IceCube events.


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English version:
Journal of Experimental and Theoretical Physics Letters, 2014, 100:12, 761–765

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Document Type: Article
Received: 11.10.2014
Language: English

Citation: O. Kalashev, S. V. Troitsky, “IceCube astrophysical neutrinos without a spectral cutoff and $10^{15}$$10^{17}$ eV cosmic gamma radiation”, Pis'ma v Zh. Èksper. Teoret. Fiz., 100:12 (2014), 865–869; JETP Letters, 100:12 (2014), 761–765

Citation in format AMSBIB
\by O.~Kalashev, S.~V.~Troitsky
\paper IceCube astrophysical neutrinos without a spectral cutoff and
$10^{15}$--$10^{17}$~eV cosmic gamma radiation
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2014
\vol 100
\issue 12
\pages 865--869
\jour JETP Letters
\yr 2014
\vol 100
\issue 12
\pages 761--765

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    This publication is cited in the following articles:
    1. JETP Letters, 102:12 (2015), 785–788  mathnet  crossref  crossref  isi  elib
    2. Esmaili A., Serpico P.D., “Gamma-Ray Bounds From Eas Detectors and Heavy Decaying Dark Matter Constraints”, J. Cosmol. Astropart. Phys., 2015, no. 10, 014  crossref  mathscinet  isi  scopus
    3. Chen Ch.-Y. Dev P.S.B. Soni A., “Two-Component Flux Explanation For the High Energy Neutrino Events At Icecube”, Phys. Rev. D, 92:7 (2015), 073001  crossref  isi  scopus
    4. Murase K., Laha R., Ando Shin'ichiro, Ahlers M., “Testing the Dark Matter Scenario For Pev Neutrinos Observed in Icecube”, Phys. Rev. Lett., 115:7 (2015), 071301  crossref  isi  scopus
    5. Palomares-Ruiz S., Vincent A.C., Mena O., “Spectral Analysis of the High-Energy Icecube Neutrinos”, Phys. Rev. D, 91:10 (2015), 103008  crossref  isi  scopus
    6. Di Bari P., Ludl P.O., Palomares-Ruiz S., “Unifying leptogenesis, dark matter and high-energy neutrinos with right-handed neutrino mixing via Higgs portal”, J. Cosmol. Astropart. Phys., 2016, no. 11, 044  crossref  isi
    7. Hooper D., “A case for radio galaxies as the sources of IceCube's astrophysical neutrino flux”, J. Cosmol. Astropart. Phys., 2016, no. 9, 002  crossref  isi  elib  scopus
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