Limits on the τ neutrino electromagnetic properties from single photon searches at e+e- colliders

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We set limits on the magnetic moment and charge radius of the τ neutrino by examining the contributions to the process e+e-→v {Mathematical expression}γ due to such interactions. We find that K(ντ)<4×10-6 (i.e.μ(ντ)<4×10-6μB, μB=e/2 me) 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 future e+e- experiments.

Original languageEnglish (US)
Pages (from-to)553-556
Number of pages4
JournalZeitschrift für Physik C Particles and Fields
Issue number4
Publication statusPublished - Dec 1 1988


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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