2013/08/31 by Yu-Kun Song, Yu-kun Song, Jian-Hua Gao +3 · 33 citations
Physics and Astronomy · #Asymmetry #Azimuth #Deep inelastic scattering #Electron #Formalism (music) #Geometry #High-Energy Particle Collisions Research #Inelastic scattering #Lepton #Nuclear physics #Nucleon #Optics #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Polarization (electrochemistry) #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Scattering #Scattering cross-section #Twist #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.89.014005
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 89(1) (American Physical Society) · version to appear in Phys. Rev. D
arxiv created 2013/12/05 · openalex publication_date 2014/01/06 · arxiv updated 2014/01/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Using the formalism obtained from collinear expansion, we calculate the differential cross section and azimuthal asymmetries in the semi-inclusive deeply inelastic lepton-nucleon (nucleus) scattering process e^\ensuremath-+N(A)\ensuremath→e^\ensuremath-+q+X with both polarized beam and polarized target up to twist-3. We derive the azimuthal asymmetries in terms of twist-3 parton correlation functions. We simplify the results by using the QCD equation of motion that leads to a set of relationships between different twist-3 functions. We further study the nuclear dependence of azimuthal asymmetries and show that they have similar suppression factors as those in the unpolarized reactions.