K0Photoproduction Cross Sections Compared to Quark-Model Predictions

Abstract
The upper limit of the ratio of K0 production from the neutron to that from the proton at forward c.m. angles is determined experimentally. This limit is about 20 times less than the ratio predicted on the basis of quark wave functions, at the energies of this experiment. The maximum Q value for these reactions is 240 MeV, with forward three-momentum transfers in the range 260-390 MeV/c.