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

Abstract

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: ${\kappa }_{{\nu }_{\tau }}$ $\le$ 1.83*10${}^{-6}$ .

13 pages, 1 figure

References in corpus (3)

• Bounding the Tau Neutrino Magnetic Moment from Single Photon Searches at LEP
• Z' interference effects from TRISTAN to LEP2
• Optimal observables for new-physics search at LEP2

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• Bounds on the dipole moments of the tau-neutrino via the process $e^{+}{e}^{-}\to \nu \bar{\nu }\gamma$ in a 331 model
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• Probing the electromagnetic dipole moments of the tau-neutrino in the $U(1{)}_{B-L}$ model at the ILC and CLIC energies
• Bounds on dipole moments of tau-neutrino from single photon searches in $SU(4{)}_L\times U(1{)}_X$ model at CLIC and ILC energies
• Model-independent sensibility studies for the anomalous dipole moments of the ${\nu }_{\tau }$ at the CLIC based $\gamma e^{-}$ colliders
• The Bounds on the magnetic moment of the tau-neutrino via the process (e+e-)-->nunu(bar)gamma
• Model-independent study for the tau-neutrino electromagnetic dipole moments in $e^{+}{e}^{-}\to {\nu }_{\tau }{\bar{\nu }}_{\tau }\gamma$ at the CLIC