Next-to-Leading Order QCD Factorization for Semi-Inclusive Deep Inelastic Scattering at Twist 4

• DOI: 10.1103/physrevlett.112.102001
• Publication Date: 2014-03-10T21:08:36Z
• Authors: Zhong-Bo Kang; Enke Wang; Xin-Nian Wang; Hongxi Xing
• Keywords: Perturbative QCD; Jet quenching; Weierstrass factorization theorem; Drell–Yan process

Within the framework of a high-twist approach, we calculate next-to-leading order (NLO) perturbative QCD corrections to transverse momentum broadening in semi-inclusive hadron production deeply inelastic $e+A$ collisions, as well lepton pair $p+A$ collisions. With explicit calculations both real and virtual contributions, verify, for first time, factorization theorem at twist 4 NLO nuclear-enhanced weighted differential cross section demonstrate universality associated twist-4 quark-gluon correlation function. We also identify evolution equation function large nucleus, which can be solved determine scale dependence jet transport parameter study quenching.