2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/47328In the context of HERA with polarized lepton and proton beams, we explore the sensitivity of the collider to contact interactions. We emphasize that the measurement of longitudinal spin asymmetries in such a polarized context could give some crucial informations on the chiral structure of these hypothetical new interactions.Latex file, 7 pages and 4 ps fig included with psfig.sty. To appear in the proceedings of the "2nd Zeuthen Spin Physics Workshop", Zeuthen, Germany, September 1997High Energy Physics - Phenomenologytext