2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/36934A new H1 measurement of diffractive dijet and 3-jet production cross sections in diffractive deep inelastic scattering events of the type ep->eXY is presented. The data constrain well the diffractive gluon distribution. At low x-pom, a calculation based on perturbative QCD is in a reasonable agreement with the data.4 pages, talk at DIS 2000 (Liverpool; April 2000), to appear in the proceedingsHigh Energy Physics - Experimenttext