Phys. Rev. D 69, 013007 (2004) [8 pages]Neutrino electroweak radiusReceived 29 September 2003; published 30 January 2004 We study a combination of amplitudes for neutrino scattering that can isolate a (gauge-invariant) difference of chirality-preserving neutrino electroweak radii for νμ and ντ. This involves both photon and Zμ exchange contributions. It is shown that the construction singles out the contributions of the hypercharge gauge field Bμ in the standard model. We comment on how gauge-dependent terms from the charge radii cancel with other terms in the relative electroweak radii. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.69.013007
DOI:
10.1103/PhysRevD.69.013007
PACS:
13.15.+g, 11.15.-q, 12.15.Lk
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