Please visit Jefferson Lab Event Policies and Guidance before planning your next event: https://www.jlab.org/conference_planning.

Apr 13 – 16, 2021
US/Eastern timezone

Precision lattice calculation of the $x$-dependence of pion valence PDF

Apr 13, 2021, 4:30 PM
20m
Oral Presentation Pion and Kaon Structure

Speaker

Yong Zhao (Brookhaven National Laboratory)

Description

In this talk, we present a model-independent calculation of the $x$-dependence of pion valence PDF with the large-momentum effective theory approach. In this calculation we adopt the most up-to-date theoretical developments on the systematic corrections, which include the hybrid renormalization scheme that rigorously renormalizes the lattice matrix elements at both short and long distances, as well as the inverted two-loop matching kernel that allows for extraction of the PDF without any model assumption. Therefore, we are able to make predictions for the PDF within a range of $x\in [x_{\rm min}, x_{\rm max}]$ where the systematic uncertainties are under control. This is a firm step towards the stage of precision calculation of PDFs.

Primary authors

Yong Zhao (Brookhaven National Laboratory) Mr Xiang Gao (Tsinghua University) Swagato Mukherjee (Brookhaven National Laboratory)

Presentation materials