2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/38067The recently proposed COMPASS experiment at CERN attempts a measurement of the gluon polarisation with a precision of delta(Delta g/g) = 0.1. The experiment uses open charm muoproduction to tag the photon-gluon fusion process.5 pages, Latex, Talk at the 12th International Symposium on High-Energy Spin PhysicsHigh Energy Physics - ExperimentHigh Energy Physics - Phenomenologytext