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Semi-Inclusive Deep Inelastic Scattering processes from small to large PT

  • Regular Article - Hadron Physics
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Abstract.

We consider the azimuthal and PT-dependence of hadrons produced in unpolarized Semi-Inclusive Deep Inelastic Scattering (SIDIS) processes, within the factorized QCD parton model. It is shown that at small PT values, P T ≲ 1GeV/c, lowest-order contributions, coupled to unintegrated (transverse-momentum-dependent) quark distribution and fragmentation functions, describe all data. At larger PT values, P T ≳ 1GeV/c, the usual pQCD higher-order collinear contributions dominate. Having explained the full PT range of available data, we give new detailed predictions concerning the azimuthal and PT-dependence of hadrons which could be measured in ongoing or planned experiments by HERMES, COMPASS and JLab Collaborations.

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Authors and Affiliations

  1. Dipartimento di Fisica Teorica, Università di Torino and INFN, Sezione di Torino, Via P. Giuria 1, I-10125, Torino, Italy

    M. Anselmino, M. Boglione, A. Prokudin & C. Türk

Authors
  1. M. Anselmino
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  2. M. Boglione
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  3. A. Prokudin
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  4. C. Türk
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Correspondence to M. Anselmino.

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E. De Sanctis

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Anselmino, M., Boglione, M., Prokudin, A. et al. Semi-Inclusive Deep Inelastic Scattering processes from small to large PT . Eur. Phys. J. A 31, 373–381 (2007). https://doi.org/10.1140/epja/i2007-10003-9

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  • DOI: https://doi.org/10.1140/epja/i2007-10003-9

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