a Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
b Lyman Laboratory of Physics, Harvard University, Cambridge, MA 02138, USA
Abstract:
Recent data give unexpectedly large cross-sections for charmed particle production at high xF in hadron collisions. This may imply that the proton has a non-negligible uudc Fock component. The interesting consequences of such a hypothesis are explored.