Bounding the Tau Neutrino Magnetic Moment from the Process E+ E- --> Gamma Nu Anti-Nu

Details Bounding the Tau Neutrino Magnetic Moment from the Process E+ E- --> Gamma Nu Anti-Nu Bounding the Tau Neutrino Magnetic Moment from the Process E+ E- --> Gamma Nu Anti-Nu

2003-03-06

arxiv.org/abs/hep-ph/0303049v1

Mod.Phys.Lett. A16 (2001) 457-465

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 1 figure

Scientific paper

10.1142/S021773230100322X

In a class of $E_6$ inspired models with a light additional neutral vector boson, we discuss the effects of the magnetic moment of the tau neutrino by analyzing $e^{+}e^{-}$ $\to $ $\gamma \nu \bar{\nu}$ at the $Z$-pole. We take into account present scenarios for the extra Abelian group and vary extra neutral gauge boson mass beyond the present experimental exclusion limits. The present LEP experimental results prove us to set an upper bound on the magnetic moment of the tau neutrino: $\kappa_{\nu_{\tau}}$ $ \leq $ 1.83*10$^{-6}$ .

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