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Title: Flavor ratios of extragalactic neutrinos and neutrino shortcuts in extra dimensions

Abstract

The recent measurement of high energy extragalactic neutrinos by the IceCube Collaboration has opened a new window to probe non-standard neutrino properties. Among other effects, sterile neutrino altered dispersion relations (ADRs) due to shortcuts in an extra dimension can significantly affect astrophysical flavor ratios. We discuss two limiting cases of this effect, first active-sterile neutrino oscillations with a constant ADR potential and second an MSW-like resonant conversion arising from geodesics oscillating around the brane in an asymmetrically warped extra dimension. We demonstrate that the second case has the potential to suppress significantly the flux of specific flavors such as ν{sub μ} or ν{sub τ} at high energies.

Authors:
; ;  [1];  [2]
  1. Fakultät für Physik, Technische Universität Dortmund, 44221 Dortmund (Germany)
  2. Department of Physics and Astronomy, University of Hawaii, Honolulu, HI 96822 (United States)
Publication Date:
OSTI Identifier:
22525297
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2015; Journal Issue: 10; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; BRANES; CONVERSION; DISPERSION RELATIONS; FLAVOR MODEL; GEODESICS; INTERGALACTIC SPACE; NEUTRINO OSCILLATION; NEUTRINOS; POTENTIALS; PROBES

Citation Formats

Aeikens, Elke, Päs, Heinrich, Sicking, Philipp, and Pakvasa, Sandip, E-mail: elke.aeikens@tu-dortmund.de, E-mail: heinrich.paes@tu-dortmund.de, E-mail: pakvasa@phys.hawaii.edu, E-mail: philipp.sicking@tu-dortmund.de. Flavor ratios of extragalactic neutrinos and neutrino shortcuts in extra dimensions. United States: N. p., 2015. Web. doi:10.1088/1475-7516/2015/10/005.
Aeikens, Elke, Päs, Heinrich, Sicking, Philipp, & Pakvasa, Sandip, E-mail: elke.aeikens@tu-dortmund.de, E-mail: heinrich.paes@tu-dortmund.de, E-mail: pakvasa@phys.hawaii.edu, E-mail: philipp.sicking@tu-dortmund.de. Flavor ratios of extragalactic neutrinos and neutrino shortcuts in extra dimensions. United States. doi:10.1088/1475-7516/2015/10/005.
Aeikens, Elke, Päs, Heinrich, Sicking, Philipp, and Pakvasa, Sandip, E-mail: elke.aeikens@tu-dortmund.de, E-mail: heinrich.paes@tu-dortmund.de, E-mail: pakvasa@phys.hawaii.edu, E-mail: philipp.sicking@tu-dortmund.de. Thu . "Flavor ratios of extragalactic neutrinos and neutrino shortcuts in extra dimensions". United States. doi:10.1088/1475-7516/2015/10/005.
@article{osti_22525297,
title = {Flavor ratios of extragalactic neutrinos and neutrino shortcuts in extra dimensions},
author = {Aeikens, Elke and Päs, Heinrich and Sicking, Philipp and Pakvasa, Sandip, E-mail: elke.aeikens@tu-dortmund.de, E-mail: heinrich.paes@tu-dortmund.de, E-mail: pakvasa@phys.hawaii.edu, E-mail: philipp.sicking@tu-dortmund.de},
abstractNote = {The recent measurement of high energy extragalactic neutrinos by the IceCube Collaboration has opened a new window to probe non-standard neutrino properties. Among other effects, sterile neutrino altered dispersion relations (ADRs) due to shortcuts in an extra dimension can significantly affect astrophysical flavor ratios. We discuss two limiting cases of this effect, first active-sterile neutrino oscillations with a constant ADR potential and second an MSW-like resonant conversion arising from geodesics oscillating around the brane in an asymmetrically warped extra dimension. We demonstrate that the second case has the potential to suppress significantly the flux of specific flavors such as ν{sub μ} or ν{sub τ} at high energies.},
doi = {10.1088/1475-7516/2015/10/005},
journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 10,
volume = 2015,
place = {United States},
year = {2015},
month = {10}
}