 |
The figure shows the measurements of
the ep structure function with a proton or neutron of fractional energy
z relative to the proton beam energy. In the context of Regge phenomenology
these measurements can be interpreted by effective particle exchange. The
measured cross section for neutrons can be explained by positively charged
pion exchange alone. |
 |
The figure shows the interpretation of
the neutron data in terms of the pion structure function. These data give
for the first time access to parton momenta as small as 10^-3. |
|
