PANIC2021 Conference

First analysis of world polarized DIS data with small-x helicity evolution

5 Sept 2021, 15:28

15m

Online

Talk QCD, spin physics and chiral dynamics QCD, spin physics and chiral dynamics

Speaker

Daniel Adamiak (Ohio State University)

Description

We present the first-ever description the world data on the $g_1^{p,n}$ structure function at small Bjorken $x$ using evolution equations in $x$ derived from first principles QCD. This is a Monte-Carlo analysis within the JAM global framework that allows us to fit all existing polarized DIS data below $x<0.1$ as well as predict future measurements of small $x$ $g_1^{p,n}$ at the EIC. This is a necessary step in determining the quark helicity PDFs and, ultimately, the quark contribution to the proton spin.

Presentation materials

Daniel Adamiak PANIC 2021.pdf