PoS - Proceedings of Science
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
Full text: pdf
Pre-published on: August 19, 2019
Published on: August 23, 2019
Abstract
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.
DOI: https://doi.org/10.22323/1.346.0037
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