Leptonic Photons and Nucleosynthesis

Details Leptonic Photons and Nucleosynthesis Leptonic Photons and Nucleosynthesis

1996-10-25

arxiv.org/abs/astro-ph/9610205v1

Phys.Lett. B396 (1997) 201-202

Astronomy and Astrophysics

Astrophysics

4 pages, LaTeX. Full postscript file available via anonymous ftp at ftp://ftp.ifae.es/preprint/ft/uabft402.ps

Scientific paper

10.1016/S0370-2693(97)00119-6

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 $1.7 \times 10^{-11}$. For $\tau$
and $\mu$ this is the best upper limit up to date

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