XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects

Reweighting the quark Sivers function with STAR jet data

13 Apr 2021, 12:58

18m

Virtual (Stony Brook, NY)

Contributed Talk Spin Physics Spin Physics

Speaker

Carlo Flore (IJCLab Orsay)

Description

The Bayesian reweighting procedure is applied for the first time to a transverse momentum dependent distribution, the quark Sivers function extracted from Semi-Inclusive DIS (SIDIS) data. By exploting the recent published single spin asymmetry data for the inclusive jet production in $p^{\uparrow }p$ collisions from the STAR collaboration at RHIC, we show how such a procedure allows to incorporate the information contained in the new data set, without the need of re-fitting, and to explore a much wider $x$ region compared to SIDIS measurements. The reweighting method is also extended to the case of asymmetric errors, and the results show a significant improvement of the knowledge of the quark Sivers function.

Presentation materials

Sivers-reweighting-DIS.pdf

Youtube Link