Reweighting the Sivers function with jet data from STAR

M. Boglione, U. D'Alesio, C. Flore, J. O. Gonzalez-Hernandez, F. Murgia, A. Prokudin

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The reweighting procedure that using Bayesian statistics incorporates the information contained in a new data set, without the need of re-fitting, is applied to the quark Sivers function extracted from Semi-Inclusive Deep Inelastic Scattering (SIDIS) data. We exploit the recently published single spin asymmetry data for the inclusive jet production in polarized pp collisions from the STAR Collaboration at RHIC, which cover a much wider x region compared to SIDIS measurements. The reweighting method is extended to the case of asymmetric errors and the results show a remarkable improvement of the knowledge of the quark Sivers function.

Original languageEnglish (US)
Article number136135
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
StatePublished - Apr 10 2021

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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