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Phys Rev Lett. 2004 Aug 27;93(9):091801. Epub 2004 Aug 25.

Neutrino oscillations as a probe of dark energy.

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1
Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195-1550, USA. dbkaplan@phys.washington.edu

Abstract

We consider a class of theories in which neutrino masses depend significantly on environment, as a result of interactions with the dark sector. Such theories of mass varying neutrinos were recently introduced to explain the origin of the cosmological dark energy density and why its magnitude is apparently coincidental with that of neutrino mass splittings. In this Letter we argue that in such theories neutrinos can exhibit different masses in matter and in vacuum, dramatically affecting neutrino oscillations. As an example of modifications to the standard picture, we consider simple models that may simultaneously account for the LSND anomaly, KamLAND, K2K, and studies of solar and atmospheric neutrinos, while providing motivation to continue to search for neutrino oscillations in short baseline experiments such as BooNE.

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