2004/01/31 by David B. Kaplan, Ann E. Nelson, Neal Weiner · 3 citations
Physics and Astronomy · #Anomaly (physics) #Astrophysics #Cosmology #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Measurements of neutrino speed #Neutrino #Neutrino Physics Research #Neutrino oscillation #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Solar neutrino #Solar neutrino problem #astro-ph #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevlett.93.091801
published as Phys.Rev.Lett. 93 (2004) 091801 · 5 pages, 1 figure, refs added, additional data considered, minor change in conclusions about LSND
arxiv created 2004/02/20 · openalex publication_date 2004/08/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.