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 $m_\pi = 440$ 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)
