  The structure of hadron-hadron correlations is investigated in proton-proton
collisions.We focus on the transmission of the initial transverse momenta of
partons (``intrinsic $k_T$'') to the hadron-hadron correlations. Values of the
intrinsic transverse momentum obtained from experimental correlations are
compared to the results of a model with partially randomized parton transverse
momenta at ISR and RHIC energies. Procedures for extracting the correlations
from data are discussed.
