2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/125147We study di-hadron correlations in proton-proton collisions at $\sqrt{s} = 200$ GeV and interpret experimental data in terms of a fragmentation width and a momentum imbalance. A fragmentation width of $580 \pm 50$ GeV/c is obtained, and the measured momentum imbalance gives an `intrinsic' transverse momentum width of partons in the proton of $2.6 \pm 0.2$ GeV/c. Consequences to heavy ion collisions are discussed.6 pages, 4 figures, QM2006 proceedingHigh Energy Physics - Phenomenologytext