Testing quantum gravity via cosmogenic neutrino oscillations

Joy Christian
Phys. Rev. D 71, 024012 – Published 14 January 2005

Abstract

Implications of some proposed theories of quantum gravity for neutrino flavor oscillations are explored within the context of modified dispersion relations of special relativity. In particular, approximate expressions for Planck scale-induced deviations from the standard oscillation length are obtained as functions of neutrino mass, energy, and propagation distance. Grounding on these expressions, it is pointed out that, in general, even those deviations that are suppressed by the second power of the Planck energy may be observable for ultra-high-energy neutrinos, provided they originate at cosmological distances. In fact, for neutrinos in the highest energy range of EeV to ZeV, deviations that are suppressed by as much as the seventh power of the Planck energy may become observable. Accordingly, realistic possibilities of experimentally verifying these deviations by means of the next generation neutrino detectors—such as IceCube and ANITA—are investigated.

  • Received 20 September 2004

DOI:https://doi.org/10.1103/PhysRevD.71.024012

©2005 American Physical Society

Authors & Affiliations

Joy Christian*

  • Wolfson College, Oxford University, Oxford OX2 6UD, United Kingdom

  • *Electronic address: joy.christian@wolfson.oxford.ac.uk

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Issue

Vol. 71, Iss. 2 — 15 January 2005

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