On the observability of the neutrino charge radius

Bernabeu, J.; Papavassiliou, J.; Vidal, J.

On the observability of the neutrino charge radius

Authors

Bernabeu, J.

Papavassiliou, J.

Vidal, J.

Description

It is shown that the probe-independent charge radius of the neutrino is a physical observable; as such, it may be extracted from experiment, at least in principle. This is accomplished by expressing a set of experimental neutrino-electron cross-sections in terms of the finite charge radius and two additional gauge- and renormalization-group-invariant quantities, corresponding to the electroweak effective charge and mixing angle.
10 pages, 1 figure; a typo in Eq.1 corrected, some comments added