Recent data on the transverse single spin asymmetry AN measured by the STAR Collaboration for p↑p → W±/Z0X reactions at RHIC allow the first investigation of the Sivers function in Drell-Yan processes and of its expected sign change with respect to SIDIS processes. A new extraction of the Sivers functions from the latest SIDIS data is performed and a critical assessment of the significance of the STAR data is attempted.
CITATION STYLE
Anselmino, M., Boglione, M., D’Alesio, U., Murgia, F., & Prokudin, A. (2017). Study of the sign change of the Sivers function from STAR collaboration W/Z production data. Journal of High Energy Physics, 2017(4). https://doi.org/10.1007/JHEP04(2017)046
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