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The European Physical Journal A

, Volume 45, Issue 3, pp 373–388 | Cite as

Weighted azimuthal asymmetries in a diquark spectator model

  • A. Bacchetta
  • M. RadiciEmail author
  • F. Conti
  • M. Guagnelli
Regular Article - Theoretical Physics

Abstract.

We analytically calculate weighted azimuthal asymmetries in semi-inclusive lepton-nucleon deep-inelastic scattering and Drell-Yan processes, using transverse-momentum-dependent partonic densities obtained in a diquark spectator model. We compare the asymmetries with available preliminary experimental data, in particular for the Collins and the Sivers effect. We make predictions for other cases of interest in running and planned experiments.

Keywords

Partonic Density Lead Order Siver Function HERMES Collaboration Compass Collaboration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • A. Bacchetta
    • 1
    • 2
  • M. Radici
    • 2
    Email author
  • F. Conti
    • 1
    • 2
  • M. Guagnelli
    • 2
  1. 1.Dipartimento di Fisica Nucleare e TeoricaUniversità di PaviaPaviaItaly
  2. 2.Istituto Nazionale di Fisica Nucleare, Sezione di PaviaPaviaItaly

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