Neutrino oscillations in the Sun probe long-range leptonic forces

J. A. Grifols, E. Massó

Research output: Contribution to journalArticleResearchpeer-review

30 Citations (Scopus)


Lepton number charges might be the source of long range forces. If one accepts that neutrinos produced in the Sun do indeed oscillate while crossing the interior of the Sun, then the shift in the phase of the neutrino wave-function caused by an hypothetical potential associated to the leptonic charge of the electrons in the Sun could affect the oscillation pattern beyond what is actually observed. We show that a "fine structure" constant αL in excess of 6.4 × 10-54 is incompatible with present observational data. This bound is not valid for forces whose range is shorter than the size of the Sun. © 2003 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)123-126
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publication statusPublished - 15 Jan 2004


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