8 papers
Normalizing Flows to Reconstruct Pseudo-PDFs
Yamil Cahuana Medrano, Kostas Orginos
We investigate a normalizing-flow approach for reconstructing parton distribution functions (PDFs) from synthetic matrix-element data. Our framework combines Gaussian Process prior…
Reconstructing the full kinematic dependence of GPDs from pseudo-distributions
Hervé Dutrieux, Robert G. Edwards, Joe Karpie +7
We propose a reconstruction of the full dependence of unpolarized isovector proton generalized parton distributions (GPDs) and from lattice QCD dat…
Inverse problem in the LaMET framework
Hervé Dutrieux, Joe Karpie, Christopher J. Monahan +4
One proposal to compute parton distributions from first principles is the large momentum effective theory (LaMET), which requires the Fourier transform of matrix elements computed…
Accessing the Gluon Momentum Fraction of Nucleons through the Gradient Flow
Robert Edwards, Joe Karpie, Lorenzo Maio +5
We calculate the gluon momentum fraction of the nucleon using lattice quantum chromodynamics (QCD), with a nonperturbative renormalization technique based on the gradient flow. The…
Gaussian Processes for Inferring Parton Distributions
Yamil Cahuana Medrano, Hervé Dutrieux, Joseph Karpie +2
The extraction of parton distribution functions (PDFs) from experimental or lattice QCD data is an ill-posed inverse problem, where regularization strongly impacts both systematic…
The Spectrum and Scale Setting on 2+1-flavor NME Lattices
Jun-sik Yoo, June-Haak Ee, Sungwoo Park +7
This paper describes the thirteen ensembles, named NME, generated with 2+1-flavor Wilson-clover fermions by the JLab/W\&M/LANL/MIT/Marseille collaborations, and presents an analysi…