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

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Abstract

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
Volume39
Issue number4
DOIs
StatePublished - Dec 1 1988

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electromagnetic properties
Colliding beam accelerators
Magnetic moments
Photons
neutrinos
magnetic moments
radii
photons
Experiments
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

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abstract = "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.",
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AB - 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.

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