Duality in semi-inclusive pion electroproduction

Understand

We explore quark-hadron duality in semi-inclusive pion electroproduction on proton and neutron targets.

• Using the spin-flavor symmetric quark model, we compute ratios of pi+ and pi- cross sections for both unpolarized and polarized scattering, and discuss realizations of duality in several symmetry breaking scenarios.
• The model calculations allow one to understand some of the key features of recent data on semi-inclusive pion production at low energies.