Update on transversity and Collins functions from SIDIS and $\mathrm{e^+ e^-}$ data

Anselmino, M.; Melis, S.; Kotzinian, A.; Murgia, F.; Boglione, M.; D'Alesio, U.; Prokudin, A.

doi:10.1016/j.nuclphysbps.2009.03.117

Report/Journal Article

PUBDB-2015-04358

Update on transversity and Collins functions from SIDIS and $\mathrm{e^+ e^-}$ data

Anselmino, M. ; Boglione, M. ; D'Alesio, U. (Corresponding author) ; Kotzinian, A. ; Murgia, F. ; Prokudin, A. ; Melis, S.

2009
Elsevier Amsterdam

Ringberg Workshop on New Trends in HERA Physics 2008, Ringberg Castle, Germany, 5 Oct 2008 - 10 Oct 2008 Nuclear physics <Amsterdam> / B / Proceedings supplements 191, 98 - 107 (2009) [10.1016/j.nuclphysbps.2009.03.117]

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Report No.: arXiv:0812.4366

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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