Deeply pseudoscalar meson electroproduction with CLAS and Generalized Parton Distributions

الأصل · EN

We discuss the recent data of exclusive π⁰ (and π+) electroproduction on the proton obtained by the CLAS collaboration at Jefferson Lab. It is observed that the cross sections, which have been decomposed in σₜ +εσₗ, σTT and σLT structure functions, are dominated by transverse amplitude contributions. The data can be interpreted in the Generalized Parton Distribution formalism provided that one includes helicity-flip transversity GPDs.