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On universality of the coupling of neutrinos to Z

Eduard Masso
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Abstract

We employ an effective Lagrangian approach and use LEP data to place severe bounds on universality violations of the couplings of $ν_e$, $ν_μ$, and $ν_τ$ to the $Z$ boson. Our results justify the assumption of universality in these couplings that is usually made, as for example in the analysis of solar neutrinos detected at SNO.

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Eduard Masso. 2002-09-10. On universality of the coupling of neutrinos to Z. https://doi.org/10.1103/physrevd.66.077301

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