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arxiv: 0812.4366 · v1 · submitted 2008-12-23 · ✦ hep-ph

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Update on transversity and Collins functions from SIDIS and e+ e- data

M. Anselmino (1) , M. Boglione (1) , U. D'Alesio (2 , 3) , A. Kotzinian (4) , F. Murgia (3) , A. Prokudin (1) , S. Melis (1) ((1) University
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INFN Torino Italy (2) University of Cagliari (3) INFN Cagliari (4) CEA-Saclay France Yerevan Physics Institute Armenia JINR Dubna Russia)
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classification ✦ hep-ph
keywords collinsdatafunctionsidistransversityupdateanalysisasymmetries
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We present an update of a previous global analysis of the experimental data on azimuthal asymmetries in semi-inclusive deep inelastic scattering (SIDIS), from the HERMES and COMPASS Collaborations, and in e+ e- -> h1 h2 X processes, from the Belle Collaboration. Compared to the first extraction, a more precise determination of the Collins fragmentation function and the transversity distribution function for u and d quarks is obtained.

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Cited by 2 Pith papers

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  1. Simplified approach to extracting nucleon transversity in collinear factorization using near-side energy-energy correlators

    hep-ph 2026-04 unverdicted novelty 7.0

    A new method extracts the nucleon transversity PDF via near-side energy-energy correlators in dihadron fragmentation under collinear factorization, with leading-order results for SIDIS and e+e- annihilation that resem...

  2. Simplified approach to extracting nucleon transversity in collinear factorization using near-side energy-energy correlators

    hep-ph 2026-04 unverdicted novelty 7.0

    A new approach using near-side energy-energy correlators in dihadron fragmentation enables extraction of nucleon transversity PDF in collinear factorization without modeling intrinsic transverse momentum or dihadron r...