Extraction of Transversity and Collins functions

Anselmino M;Boglione M;D'ALESIO, UMBERTO;MELIS, STEFANO;Murgia F;Prokudin A.

2013-01-01

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Abstract

We present a global re-analysis of recent experimental data on azimuthal asymmetries in semiinclusive deep inelastic scattering, from the HERMES and COMPASS Collaborations, and in e+e ! h1h2X processes, from the Belle Collaboration. The transversity distribution and the Collins functions are extracted simultaneously, in a revised analysis which also takes into account a new parameterization of the unknown functions.