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Weighted azimuthal asymmetries in a diquark spectator model

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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.

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Authors and Affiliations

  1. Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, I-27100, Pavia, Italy

    A. Bacchetta & F. Conti

  2. Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, I-27100, Pavia, Italy

    A. Bacchetta, M. Radici, F. Conti & M. Guagnelli

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  1. A. Bacchetta
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  2. M. Radici
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  3. F. Conti
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  4. M. Guagnelli
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Correspondence to M. Radici.

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Communicated by A. Schäfer

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Bacchetta, A., Radici, M., Conti, F. et al. Weighted azimuthal asymmetries in a diquark spectator model. Eur. Phys. J. A 45, 373–388 (2010). https://doi.org/10.1140/epja/i2010-11016-y

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