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arXiv · 0812.4366

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

M. Anselmino·M. Boglione·U. D'Alesio·A. Kotzinian·F. Murgia·A. Prokudin·S. Melis
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Abstract

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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M. Anselmino, M. Boglione, U. D'Alesio, A. Kotzinian, F. Murgia, A. Prokudin, S. Melis. 2008-12-23. Update on transversity and Collins functions from SIDIS and e+ e- data. https://doi.org/10.1016/j.nuclphysbps.2009.03.117

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