AN in inclusive lepton-proton collisions: TMD and twist-3 approaches

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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.

Original languageEnglish (US)
Article number02028
JournalEPJ Web of Conferences
StatePublished - Jan 23 2015
Event4th International Workshop on Transverse Polarisation Phenomena in Hard Processes, TRANSVERSITY 2014 - Cagliari, Italy
Duration: Jun 9 2014Jun 13 2014

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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