Bound on the tau neutrino magnetic moment from the TRISTAN experiments

نویسنده

  • N. Tanimoto
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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تاریخ انتشار 2000