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 L 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 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. Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
|Original language||English (US)|
|Journal||Proceedings of Science|
|State||Published - Jan 1 2006|
|Event||4th Diffraction 06, International Workshop on Diffraction in High-Energy Physics, DIFF 2006 - Adamantas, Milos Island, Greece|
Duration: Sep 5 2006 → Sep 10 2006
All Science Journal Classification (ASJC) codes