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arXiv · hep-ph/0309329

On a Neutrino Electroweak Radius

Kazuo Fujikawa·Robert Shrock
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Abstract

We study a combination of amplitudes for neutrino scattering that can isolate a (gauge-invariant) difference of chirality-preserving neutrino electroweak radii for $ν_μ$ and $ν_τ$. This involves both photon and $Z_μ$ exchange contributions. It is shown that the construction singles out the contributions of the hypercharge gauge field $B_μ$ in the standard model. We comment on how gauge-dependent terms from the charge radii cancel with other terms in the relative electroweak radii defined.

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Kazuo Fujikawa, Robert Shrock. 2003-09-29. On a Neutrino Electroweak Radius. https://doi.org/10.1103/physrevd.69.013007

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