9-14 September 2018
University of Ferrara
Europe/Rome timezone
23RD INTERNATIONAL SPIN SYMPOSIUM

Spin-dependent PDFs from lattice QCD

12 Sep 2018, 15:10
20m
A10 (Polo degli Adelardi - Via Adelardi, 33)

A10

Polo degli Adelardi - Via Adelardi, 33

Parallel Sessions Nucleon Helicity Structure Nucleon helicity structure

Speaker

Dr Fernanda Steffens (DESY - Zeuthen)

Description

We present spin-dependent parton distribution functions calculated within lattice QCD simulations using physical values of the light quark mass. Non-perturbative renormalization is employed, and the lattice data are converted to the MS-scheme at a scale of 2 GeV. We then reconstruct the light-cone parton distribution functions using a matching procedure. We obtain a nice overlap for a range of Bjorken-x values between our results and phenomenological parameterizations of the polarized distributions. This presents a major success for the emerging field of direct calculations of quark distributions using lattice QCD.

Primary author

Dr Fernanda Steffens (DESY - Zeuthen)

Presentation Materials