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A Direct Constraint on Dimension-Eight Operators from Z-->neutrino antinetrino gamma by Tavares-Velasco, G.; Perez, M. A.; Maya, M.; Vega, B. is a scholarly article available to read on EtoBox.

What is A Direct Constraint on Dimension-Eight Operators from Z-->neutrino antinetrino gamma about?

We study the radiative decay Z-->neutrino antineutrino gamma whitin an effective Lagrangian approach. Using the search for energetic single-photon events in the data collected by the L3 collaboration, we get direct bounds on the dimension-six and the dimension-eight operators associated with the tau-neutrino magnetic moment and the anomalous electromagnetic properties of the Z boson. As a by-product of our calculation, we reproduce the L3 result for the bound on the tau-neutrino magnetic moment.

Author

Tavares-Velasco, G.; Perez, M. A.; Maya, M.; Vega, B.

Published

1998

Language

EN