Parton energy loss at twist-six in deeply inelastic e–A scattering

Zusammenfassung

Within the framework of the generalized factorization in pQCD, we investigate the multiple parton scattering and induced parton energy loss at twist-6 in deeply inelastic e-A scattering with the helicity amplitude approximation. It is shown that twist-6 processes will give rise to additional nuclear size dependence of the parton energy loss due to LPM interference effect while its contribution is power suppressed. (c) 2006 Elsevier B.V. All rights reserved.