We explore the complete cross-section for the production of unpolarized hadrons in semi-inclusive deep-inelastic scattering up to power-suppressed O(1/Q2) terms in the Wandzura-Wilczek-type (WW-type) approximation, which consists in systematically assuming that qgq ¯ -correlators are much smaller than qq ¯ -correlators. Under the applicability of WW-type approximations, certain relations among transverse momentum dependent parton distribution functions (TMDs) and fragmentation functions (FFs) occur which are used to approximate SIDIS cross-section in terms of a smaller subset of TMDs and FFs. We discuss the applicability of the WW-type approximations on the basis of available data.
|Original language||English (US)|
|Journal||Proceedings of Science|
|State||Published - 2019|
|Event||27th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2019 - Torino, Italy|
Duration: Apr 8 2019 → Apr 12 2019
All Science Journal Classification (ASJC) codes