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Contribution Poster high energy neutrinos & cosmic rays

Poster (participating in poster prize competition)

Electromagnetic interactions and oscillations of ultrahigh-energy cosmic neutrinos in interstellar space

Speakers

  • Prof. Konstantin KOUZAKOV
  • Prof. Alexander STUDENIKIN

Primary authors

Co-authors

Session and Location

Wednesday Session, Poster Wall #199 (Ballroom)

Abstract content

We present a theoretical analysis [1] of possible influence of neutrino magnetic moments on the propagation of ultrahigh-energy cosmic neutrinos in the interstellar space under the assumption of two-neutrino mixing. The exact solution of the effective equation for neutrino evolution in the presence of a magnetic field and matter is obtained, which accounts for four neutrino species corresponding to two different flavor states with positive and negative helicities. Using most stringent astrophysical bounds on the putative neutrino magnetic moment, probabilities of neutrino flavor and spin oscillations are calculated on the basis of the obtained exact solution. Specific neutrino-oscillation patterns are determined for neutrino-energy values characteristic of, respectively, the cosmogenic neutrinos, the Greisen-Zatsepin- Kuz’min cutoff, and well above the cutoff.

[1] P. Kurashvili, K. A. Kouzakov, L. Chotorlishvili, and A. I. Studenikin, Phys. Rev. D 96, 103017 (2017).

Poster included in proceedings:

yes