Parton energy loss or nuclear absorption: What quenches hadron spectra at HERA ?

Abstract

We suggest and explore two observables which may clarify the origin of the attenuation of semi-inclusive hadron production reported in DIS on nuclear targets.

Comments: 5 pages, 2 figures. Proceedings XI International Workshop on Deep Inelastic Scattering (DIS03), St. Petersburg, April 2003