2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/39470The hadroproduction of lepton pairs with mass $Q$ and finite transverse momentum $Q_T$ is dominated by quark-gluon scattering in the region $Q_T > Q/2$. This feature provides a new independent method for constraining the gluon density with data at hadron collider energies. Predictions are provided at the energy of the LHC.3 pages, latex, plus three .ps files. Contribution to be published in the Proceedings of the 1999 CERN Workshop on Standard Model Physics at the LHC, October 14 - 15, 1999High Energy Physics - Phenomenologytext