Colour-octet Contributions to J/psi Hadroproduction at Fixed Target   Energies
  We investigate the integrated cross section for forward $\jpsi$ production in proton-proton and pion-proton collisions at centre of mass energies upto 60 GeV. We find that colour-octet contributions to the cross section are crucially important, and their inclusion produces a very good description of the data. Since the values of non-perturbative matrix elements are fixed by other experiments, these predictions are parameter-free. 
Sourendu Gupta and K. Sridhar (TIFR, Bombay, India.)