Abstract
We set limits on the magnetic moment and charge radius of the τ neutrino by examining the contributions to the processe+e−→v\(\bar \nu \)γ due to such interactions. We find thatK(ντ)<4×10−6 (i.e.μ(ντ)<4×10−6μB, μB=e/2me) and 〈r2〉<2×10−31 cm2 using the combined data of the MAC, ASP, CELLO, and Mark J collaborations for this process. We briefly discuss whether these bounds can be improved in any futuree+e− experiments.
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