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7–9 Dec 2021
Zoom
US/Eastern timezone

The continuum and leading twist limits of pseudo-PDFs

7 Dec 2021, 10:25
25m
Zoom

Zoom

Speaker

Joseph Karpie

Description

The continuum limit is a fundamental step when using a lattice regulator and necessary for any high precision calculation using lattice QCD. The matrix elements used in determining a PDF have two dimensionful parameters, compared to the 0 or 1 of most lattice calculations, which significantly complicates the continuum limit extrapolation. In this presentation, I will describe a method which will allow for a continuum limit extrapolation from any ensemble without having to fix any of the parameters. It also can be extended to other systematic errors such as removing higher twist effects. I will demonstrate this method on a set of ensembles with mπ=440 MeV and lattice spacings a=0.048,0.065, and 0.075 fm.

Authors

Anatoly Radyushkin Joseph Karpie Kostas Orginos (William and Mary - Jlab) Savvas Zafeiropoulos (Aix Marseille Univ. & CNRS)

Presentation materials