Pion valence structure and form-factors from lattice QCD at physical point

14 Apr 2021, 08:54
18m
Virtual (Stony Brook, NY)

Virtual

Stony Brook, NY

Online
Contributed Talk Structure Functions and Parton Densities Structure function and parton densities

Speaker

Xiang Gao

Description

We present a lattice determination of pion valence parton distribution function (PDF) and electomagnetic form-factors. Our study use NNLO leading-twist perturbative matching formula to extract first few moments and reconstruct the x-dependent PDF of pion. Three mixed action ensambles including a physical pion mass with fine lattice spacings of a = 0.04, 0.06 and 0.076 fm are used to investigate the mass dependence as well as approaching continuum limit.

Primary authors

Xiang Gao Swagato Mukherjee (BNL) Peter Petreczky (BNL) Yong Zhao (Brookhaven National Laboratory) Nikhil Karthik (BNL) Dr Sergey Syritsyn (Stony Brook University and RIKEN-BNL)

Presentation materials