arXiv:hep-ph/0606312·v2·High Energy Physics — Phenomenology
Parton Energy Loss at Twist-Six in Deeply Inelastic e-A Scattering
Yun Guo🇨🇳 · Ben-Wei Zhang🇨🇳 · Enke Wang🇨🇳
Abstract
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.
Comments: 6 pages, 2 figures