Potential measurement of the weak mixing angle with neutrino-electron scattering at low energy

Details Potential measurement of the weak mixing angle with neutrino-electron scattering at low energy Potential measurement of the weak mixing angle with neutrino-electron scattering at low energy

2010-05-07

arxiv.org/abs/1005.1254v2

JHEP 1108:059,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 5 eps figures, 3 tables. Title changed. Detailed discussion on the proposed set-up and the dependence of the expected

Scientific paper

10.1007/JHEP08(2011)059

We study the possibility to measure sin^2 theta_W by neutrino-electron scattering at a value of the momentum transfer Q ~ 30 MeV with a precision of 0.24% which is only a factor three below the one obtained by LEP-I at the Z-pole. The neutrino source is a proton beam dump providing a clean beam from muon decay at rest and the detector is a 100 kt scale water Cerenkov detector, which results in about 20 million signal events.

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