Neutrino electron scattering and electroweak gauge structure: Probing the masses of a new Z boson

Abstract

Low-energy high-resolution neutrino-electron scattering experiments may play an important role in testing the gauge structure of the electroweak interaction. We discuss the use of strong radioactive neutrino sources (e.g. $^{51}$Cr) in underground experiments such as BOREXINO, HELLAZ and LAMA. We display the sensitivity of these detectors in testing the possible existence of extra neutral $E_6$ gauge bosons.

10 pages, 3 figures included, talk given at the International symposium on lepton and baryon number violation, Trento, Italy, April 1998