On the Sensitivity of Neutrino Telescopes to a Modified Dispersion Relation
- Pontificia Universidad Catolica del Peru, Seccion Fisica, Lima (Peru)
- Centro de Investigacion y de Estudios Avanzados, Departamento de Fisica, Mexico D.F. (Mexico)
We consider a modified dispersion relation and its effect on the flavour ratios of high-energy neutrinos originated at distant astrophysical sources such as active galactic nuclei. This dispersion relation arise naturally in different new physics (NP) effects such as violation of CPT invariance, of the equivalence principle and of Lorentz invariance. It is a common notion in the literature that by using the flux of high-energy neutrinos expected from distant astrophysical sources, the sensitivity to possible NP effects may be improved beyond the current bounds. However, performing a realistic analysis that takes into account the expected number of events in future neutrino telescopes, we find that the average detected flavour ratios with and without the inclusion of new physics have essentially the same value, making difficult to obtain an improved bound for this type of new physics.
- OSTI ID:
- 21149102
- Journal Information:
- AIP Conference Proceedings, Vol. 1026, Issue 1; Conference: 11. Mexican workshop on particles and fields, Tuxtla Gutierrez (Mexico), 7-12 Nov 2007; Other Information: DOI: 10.1063/1.2965053; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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