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Nucleosynthesis constraints on heavy tau-neutrino in the presence of annihilations to majorons

arXiv:hep-ph/9604201 · doi:10.1016/0920-5632(96)00258-7

Abstract

We show that in the presence of sufficiently strong $ν_τ$ annihilations to majorons, primordial nucleosynthesis constraints can not rule out any values of the $ν_τ$ mass up the present laboratory limit.

Talk given at TAUP 95, Toledo, Sept. 1995; 5 pages, LaTex file + 2 figures, all compressed by uufiles