Applications of the WW-type approximation to SIDIS

Apr 10, 2019, 11:19 AM
Rettorato - Aula Principi d'Acaja

Rettorato - Aula Principi d'Acaja

via Verdi, 8 Turin
Parallel Session Talk WG6: Spin and 3D structure WG6: Spin and 3D structure


Kemal Tezgin (University of Connecticut)


We explore the complete cross-section for the production of unpolarized hadrons in semi-inclusive deep-inelastic scattering up to power-suppressed $\mathcal{O}(1/Q^2)$ terms in the Wandzura–Wilczek-type approximation, which consists in systematically assuming that $\bar{q}gq$-correlators are much smaller than $\bar{q}q$-correlators. Under the applicability of Wandzura–Wilczek-type approximations, certain relations among TMDs occur which will be used to approximate SIDIS cross-section by a smaller subset of TMDs. We further discuss the applicability of the Wandzura–Wilczek-type approximations on the basis of available data.

Primary authors

Saman Bastami (University of Connecticut) Harut Avakian Anatoli Efremov (Joint Institute for Nuclear Research (RU)) Aram Kotzinian (A.Alikhanyan National Science Laboratory (AM)) Bernhard U. Musch Bakur Parsamyan (CERN, University of Turin and INFN) Alexey Prokudin Marc Schlegel (New Mexico State University) Gunar Schnell Peter Schweitzer (University of Connecticut) Kemal Tezgin (University of Connecticut)

Presentation materials