COMPASS reports preliminary qT-weighted Drell-Yan transverse spin asymmetries from 2015 plus half of 2018 data, and extracts the first transverse moment of the pion Boer-Mulders TMD PDF.
Transversity and its accompanying T-odd distribution from Drell-Yan processes with pion-proton collisions
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abstract
It is studied the possibility of direct extraction of the transversity and its accompanying T-odd parton distribution function (PDF) from Drell-Yan (DY) processes with unpolarized pion beam and with both unpolarized and transversely polarized proton targets. At present, such a measurement can be performed on the COMPASS experiment at CERN. The preliminary estimations performed for COMPASS kinematic region demonstrate that it is quite real to extract both transversity and its accompanying T-odd PDF in the COMPASS conditions
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Measurement of $\mathbf{q_T}$-weighted transverse-spin-dependent azimuthal asymmetries at COMPASS
COMPASS reports preliminary qT-weighted Drell-Yan transverse spin asymmetries from 2015 plus half of 2018 data, and extracts the first transverse moment of the pion Boer-Mulders TMD PDF.