S. Baumgartner et al., HOW TO DETERMINE THE PION CLOUD OF THE CONSTITUENT QUARK, ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 353(4), 1996, pp. 397-409
We calculate the differential cross section for semi-inclusive pion pr
oduction in electron proton reactions using a model where the physical
quark fluctuates with some probability to quark plus pion. The kinema
tic regions for a determination of this 'pion cloud' are evaluated.