Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-02-27
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages latex, Typos corrected, references added
Scientific paper
We point out that the presence of bulk neutrinos in models with large extra spatial dimensions can lead to observable flavour specific deformations in the spectra of extreme high energy cosmic neutrinos. These deformations are due to the spin precession of the high energy neutrinos in the background magnetic fields via electromagnetic interactions. Measurements with existing and proposed neutrino telescopes which are meant to detect high energy neutrinos can therefore provide a novel way to probe the size of extra hidden dimensions. We qualitatively illustrate the flavour suppression due to the Earth, Sun and intergalactic magnetic fields. An observable consequence of this precession could be an angular asymmetry for the extreme high energy neutrinos from the atmosphere and flavour specific deformations of the intergalactic neutrinos.
Balaji K. R. S.
Dighe Amol
Mohapatra Rabindra N.
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