Leptonic photons and nucleosynthesis

J. A. Grifols, E. Massó

Research output: Contribution to journalArticleResearchpeer-review

10 Citations (Scopus)


Should U(1) long-range forces be associated to electron, muon and/or tau quantum number then their "fine structure constants" are seen to be bound by nucleosynthesis data to be less than about 1.8 × 10-11. For Tτand μ this is the best upper limit up to date. © 1997 Elsevier Science B.V.
Original languageEnglish
Pages (from-to)201-202
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1-4
Publication statusPublished - 20 Mar 1997

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