XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects

Zero modes and Matching for the twist-3 PDFs

14 Apr 2021, 09:12

18m

Virtual (Stony Brook, NY)

Contributed Talk Spin Physics Spin Physics

Speaker

Shohini Bhattacharya (Graduate Student)

Description

Quasi-PDF approach, proposed by Ji in 2013, has made it possible to directly extract light-cone PDFs from lattice QCD. This approach relies on the extraction of matrix elements of space-like operators for fast-moving hadrons. Quasi-PDFs can be related to the light-cone PDFs through a perturbatively calculable matching coefficient. We explore the formalism of matching, for the very first time, for the twist-3 PDFs $g_T(x)$, $e(x)$ and $h_L(x)$. In this talk, we address the non-trivialities involved in the extraction of the matching coefficient due to the presence of the zero-mode contributions.

Presentation materials

DIS_Shohini_2021.pdf

Youtube Link