2006/06/28 by M. Anselmino, M. Boglione, Alexei Prokudin +3 · 2 citations
Physics and Astronomy · #Azimuth #Compass #Deep inelastic scattering #Fragmentation function #Hadron #High-Energy Particle Collisions Research #Inelastic scattering #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Parton #Perturbative QCD #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark #Scattering #hep-ph
paper · pdf · doi:10.1140/epja/i2007-10003-9
published as Eur.Phys.J.A31:373-381,2007 · 14 pages, 17 figures, uses revtex4
arxiv created 2006/06/28 · openalex publication_date 2007/03/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider the azimuthal and PT dependence of hadrons produced in unpolarized Semi-Inclusive Deep Inelastic Scattering (SIDIS) processes, within the factorized QCD parton model. It is shown that at small PT values, PT \lsim 1 GeV/c, lowest order contributions, coupled to unintegrated (Transverse Momentum Dependent) quark distribution and fragmentation functions, describe all data. At larger PT values, PT \gsim 1 GeV/c, the usual pQCD higher order collinear contributions dominate. Having explained the full PT range of available data, we give new detailed predictions concerning the azimuthal and PT dependence of hadrons which could be measured in ongoing or planned experiments by HERMES, COMPASS and JLab collaborations.