论文标题
（基于MUON的）中微子质量的上限提高了上限
An improved upper limit for the (muon based) neutrino mass
论文作者
论文摘要
MU衰减的宽度是在V-A理论中计算出来的，这使得非零中微子质量的可能性。结果表明，不仅保留与实验数据的一致性，而且实验误差的较小性允许将NU质量（MUON）的约束（基于MUON）的约束降低到0.021 MeV，前提是NU质量（基于电子）的限制与3Hβ衰变所指示的低。由于在这种情况下，衰减宽度具有较大的实验误差，因此无法实现NU质量（TAU）的类似约束。
The width for the mu decay is calculated in the V-A theory leaving open the possibility of non zero neutrino masses. It is shown that not only the agreement with the experimental data is kept, but the smallness of the experimental error allows to improve the constraint of nu mass (muon based) down to 0.021 MeV, provided that nu mass (electron based) is as low as indicated by the 3H beta decay. An analogous constraint for the nu mass (tau based) is not possible since in this case the decay width has a larger experimental error.
