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14-18 May 2018
Jefferson Lab - CEBAF Center
US/Eastern timezone

Pseudo Distributions from Lattice QCD

15 May 2018, 17:10
20m
Auditorium (Jefferson Lab - CEBAF Center)

Auditorium

Jefferson Lab - CEBAF Center

Speaker

Joseph Karpie (College of William and Mary)

Description

The Direct calculation of x-dependent parton distribution functions (PDFs) are not possible using ab initio Euclidean-space Lattice QCD, due to their definitions in terms of light-cone coordinates. I present the recent Lattice QCD calculation of pseudo PDFs, a Lorentz invariant generalization of light cone PDFs. These Lorentz invariant functions can be calculated on a Euclidean lattice and related to light cone PDFs in the proper limits. I will discuss the applicability of perturbative formula to the lattice data. I will also discuss methods of extracting the PDF from lattice data over a limited range of momenta and Euclidean-space separations.

Primary author

Joseph Karpie (College of William and Mary)

Co-authors

Anatoly Radyushkin (ODU/JLab) Prof. Kostas Orginos (William and Mary / JLab) Dr Savvas Zafeiropoulos (Heidelberg University)

Presentation Materials