Neutrino Oscillations as a Probe of Dark Energy

David B. Kaplan, Ann E. Nelson, and Neal Weiner
Phys. Rev. Lett. 93, 091801 – Published 25 August 2004

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.

  • Received 19 February 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.091801

©2004 American Physical Society

Authors & Affiliations

David B. Kaplan*

  • Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195-1550, USA

Ann E. Nelson and Neal Weiner

  • Department of Physics, Box 1560, University of Washington, Seattle, Washington 98195-1560, USA

  • *Electronic address: dbkaplan@phys.washington.edu
  • Electronic address: anelson@phys.washington.edu
  • Electronic address: nealw@phys.washington.edu

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Issue

Vol. 93, Iss. 9 — 27 August 2004

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