2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/188414We discuss the possibility of using future high--intensity low--energy neutrino beams for precision tests of the Standard Model. In particular we consider the determination of the electroweak mixing angle from elastic and quasi--elastic neutrino--nucleon scattering at a superbeam or $β$--beam.4 pages, 1 figure. Use the style file espcrc2.sty. A shortened version of the paper will appear on Nucl. Phys. B Proc. Suppl., Proceedings of the Conference NOW (Neutrino Oscillation Workshop) 2006High Energy Physics - Phenomenologytext