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Volume 346 - 23rd International Spin Physics Symposium (SPIN2018) - Parallel Session: Structure of the Nucleon: TMDs (A. Bacchetta, J. Drachenberg and B. Parsamyan)
COMPASS results on weighted Sivers asymmetry in SIDIS
A. Martin* on behalf of the COMPASS Collaboration
*corresponding author
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Pre-published on: 2019 August 19
Published on: 2019 August 23
The transverse momentum weighted asymmetries have been proposed since a long time to access the transverse momentum dependent parton distributions. The COMPASS Collaboration has recently measured the weighted Sivers asymmetries in deep inelastic lepton scattering off transversly polarised protons. The results are in agreement with the expectations based on the previous measurements of the standard Sivers asymmetries. They are briefly described here, together with a new point-by-point extraction of the first moment of the Sivers function.
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