TL;DR
This paper investigates transverse momentum dependent nucleon distribution functions within a quark-diquark model, calculating SIDIS asymmetries and comparing them with experimental data, and discusses extending the model to include the Sivers function.
Contribution
It introduces a simple quark-diquark model to describe SIDIS asymmetries and compares the results with experimental data, also discussing generalizations for the Sivers function.
Findings
Model describes measured asymmetries well
Calculations agree with COMPASS results
Discusses potential extensions for the Sivers function
Abstract
Some properties of intrinsic transverse momentum dependent nucleon distribution functions are considered in the simple quark-diquark model. The transverse target polarization dependent asymmetries for SIDIS are calculated and compared with recent results of COMPASS. The model describes well the measured asymmetries. Generalization of quark-diquark model for Sivers function is discussed.
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