Bound on the tau neutrino magnetic moment from the TRISTAN experiments
نویسنده
چکیده
We set limits on the magnetic moment and charge radius of the tau neutrino by examining an extra contribution to the electroweak process e+e− → ννγ using VENUS, TOPAZ and AMY results. We find that κ(ντ ) < 9.1 × 10−6 (i.e. μ(ντ ) < 9.1 × 10μB , μB = e/2me) and 〈r2〉 < 3.1 × 10−31cm2 with Poisson statistics by combining their results. Whereas, similar to this method, with the Unified Approach we find that κ(ντ ) < 8.0× 10−6 and 〈r2〉 < 2.7 × 10−31cm2.
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