Possible improvements on the mass of the tau neutrino using leptonic decays
arXiv:hep-ph/0212051 · doi:10.1016/S0370-2693(03)00563-X
Abstract
We show how a very accurate measurement of the branching ratios of the leptonic decay modes of the mesons can lead to a significant improvement in the mass limit for the tau neutrino.
1 typo in Eq.2 corrected