Jul 26 – 30, 2021
US/Eastern timezone

Valence structure of pion: physical mass, chiral quarks

Jul 28, 2021, 2:15 PM
15m
Oral presentation Hadron Structure Hadron Structure

Speaker

Xiang Gao (Tsinghua University)

Description

We study pion valence structure from lattice QCD using three mixed action ensambles including a physical pion mass with fine lattice spacings of a = 0.04, 0.06 and 0.076 fm. Our analysis use ratio-based scheme and hybrid scheme to renormalize the equal-time bilocal quark-bilinear matrix elements. We extract first few moments and reconstruct the x-dependent PDF using NNLO leading-twist perturbative matching formula, and investigate the mass dependence as well as approaching continuum limit. Two Domain-Wall ensembles are used to cross check our estimate.

Primary authors

Xiang Gao (Tsinghua University) Swagato Mukherjee (Brookhaven National Laboratory) Nikhil Karthik (Thomas Jefferson National Accelerator Facility) Dr Yong Zhao (Argonne National Laboratory) Peter Petreczky (BNL) Sergey Syritsyn (Stony Brook University)

Presentation materials