AN in inclusive lepton-proton collisions: TMD and twist-3 approaches
Jefferson Lab, 12000 Jefferson Avenue, Newport News, VA 23606, USA
a e-mail: firstname.lastname@example.org
Published online: 23 January 2015
We consider the inclusive production of hadrons in lepton-nucleon scattering. For a transversely polarized nucleon this reaction shows a left-right azimuthal asymmetry, which we compute in both TMD and in twist-3 collinear factorization formalisms. All non-perturbative parton correlators of the calculation are fixed through information from other hard processes. Our results for the left-right asymmetry agree in sign with recent data for charged pion production from the HERMES Collaboration and from Jefferson Lab. We discuss similarities and differences of the two formalisms.
© Owned by the authors, published by EDP Sciences, 2015
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