Inclusive production on nuclei at large transverse momentum

We show that inclusive production data on nuclear targets at large transverse momentum can be interpreted according to the general features of the parton model. The data are inconsistent with "cascade" models, in which produced particles are assumed to interact independently with the nucleons in the nucleus. We propose an interpretation of the $A^{1.1}-A^{1.3}$ behavior which has been observed at $s=560\mathrm{}$ ${\mathrm{GeV}}^2$.