Polarized parton distributions from NLO QCD analysis of world DIS and SIDIS data
A. Sissakian, O. Shevchenko, O. Ivanov
TL;DR
This paper performs a next-to-leading order QCD analysis of world polarized DIS and SIDIS data to derive new polarized parton distribution functions, emphasizing the impact of recent SIDIS data on sea quark polarization.
Contribution
It introduces a new parametrization of polarized PDFs and assesses uncertainties using a modified Hessian method, focusing on sea and strange quark polarization symmetry.
Findings
New polarized PDFs with quantified uncertainties
Significant impact of SIDIS data on light sea and strange quark polarization
Insights into polarized sea symmetry compared to recent results
Abstract
The combined analysis of polarized DIS and SIDIS data is performed in NLO QCD. The new parametrization on polarized PDFs is constructed. The uncertainties on PDFs and their first moments are estimated applying the modified Hessian method. The especial attention is paid to the impact of novel SIDIS data on the polarized distributions of light sea and strange quarks. In particular, the important question of polarized sea symmetry is studied in comparison with the latest results on this subject.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.