XIIth Meeting on Lattice Parton Physics from Large Momentum Effective Theory (LaMET 2025)

Toward Continuum-Extrapolated Gluon PDFs from LaMET with Self-Renormalization

Oct 8, 2025, 9:20 AM

20m

CFNS, Peter Paul Seminar Room, C 120 Physics Building (Stony Brook University/Online)

Session I

Speaker

Alex NieMiera (Michigan State University)

Description

We report on recent progress in calculating gluon parton distribution functions (PDFs) using Large-Momentum Effective Theory (LaMET) combined with a self-renormalization approach to address the renormalization of gluon operators. Our study uses three HISQ ensembles with lattice spacings of $a = \{0.0888, 0.1207, 0.1510\}$ fm and a valence pion mass of $M_\pi \approx$ 310 MeV, with continuum extrapolation across these lattice spacings to control discretization effects. The resulting gluon PDFs will be compared with selected global fits to assess consistency and explore physical implications.