Probing the Planck Scale with Neutrino Oscillations

Ram Brustein, David Eichler, Stefane Foffa

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


Quantum gravity "foam," among its various generic Lorentz noninvariant effects, would cause neutrino mixing. It is shown here that, if the foam is manifested as a nonrenormalizable effect at scale M, the oscillation length generically decreases with energy E as (E/M)-2. Neutrino observatories and long-baseline experiments should have therefore already observed foam-induced oscillations, even if M is as high as the Planck energy scale. The null results, which can be further strengthened by better analysis of current data and future experiments, can be taken as experimental evidence that Lorentz invariance is fully preserved at the Planck scale, as is the case in critical string theory.

Original languageEnglish
Article number105006
JournalPhysical Review D
Issue number10
StatePublished - 24 Apr 2002

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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