Extraction of the Sivers Function from SIDIS, Drell-Yan, and W± /Z Data at Next-to-Next-to-Next-to Leading Order

Marcin Bury, Alexei Prokudin, Alexey Vladimirov

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31 Scopus citations

Abstract

We perform the global analysis of polarized semi-inclusive deep inelastic scattering (SIDIS), pion-induced polarized Drell-Yan (DY) process, and W±/Z boson production data and extract the Sivers function for u, d, s and for sea quarks. We use the framework of transverse momentum dependent factorization at next-to-next-to-next-to leading order (N3LO) accuracy. The Qiu-Sterman function is determined in a model independent way from the extracted Sivers function. We also evaluate the significance of the predicted sign change of the Sivers function in DY process with respect to SIDIS.

Original languageEnglish (US)
Article number112002
JournalPhysical review letters
Volume126
Issue number11
DOIs
StatePublished - Mar 17 2021

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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