2010/11/29 by I. V. Anikin, O. V. Teryaev · 4 citations
Mathematics · Physics and Astronomy · #Asymmetry #Drell–Yan process #Gauge (firearms) #Gauge theory #Geometry #Gluon #Hadron #High-Energy Particle Collisions Research #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Spin (aerodynamics) #Tensor (intrinsic definition) #Theoretical physics #hep-ph
paper · pdf · doi:10.1088/1742-6596/295/1/012057
published in Journal of Physics Conference Series 295, 012057 (IOP Publishing) · 5 pages, 1 figure; Contributed to The 19th International Spin Physics Symposium, Sept 27 - Oct 2, 2010, Juelich, Germany
arxiv created 2010/11/29 · openalex publication_date 2011/05/01 · arxiv updated 2011/08/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We explore the electromagnetic gauge invariance of the hadron tensor of the Drell-Yan process with one transversely polarized hadron. The special role is played by the contour gauge for gluon fields. The prescription for the gluonic pole in the twist 3 correlator is related to causality property and compared with the prescriptions for exclusive hard processes. As a result we get the extra contributions, which naively do not have an imaginary phase. The single spin asymmetry for the Drell-Yan process is accordingly enhanced by the factor of two.