Hadron attenuation at HERMES by (pre)hadronic FSI

Abstract

We investigate hadron formation in high energy electroproduction off complex nuclei in the framework of a BUU transport model. Our approach combines a quantum mechanical treatment of the photon's initial state interactions with a semi-classical coupled channel simulation of the (pre)hadronic final-state interactions (FSI). This allows us to study the hadron attenuation observed at HERMES and to get information on the space-time picture of hadron formation separately for ${\pi }^{\pm }$, ${\pi }^0$, $K^{\pm }$, $p$ and $\bar{p}$.

Comments: 3 pages, 1 figure, Contributions to 8th International Workshop on Meson Production, Properties and Interaction (Meson 2004), Krakow, Poland, June 6-8 2004