Exploring the Nucleon Structure from First Principles of QCD

Details Exploring the Nucleon Structure from First Principles of QCD Exploring the Nucleon Structure from First Principles of QCD

2010-04-13

arxiv.org/abs/1004.2100v2

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, 3 figures, talk presented at the XXXIII Symposium on Nuclear Physics, Cocoyoc (Morelos, Mexico), January 5-8, 2010

Scientific paper

Quantum Chromodynamics (QCD) is generally assumed to be the fundamental theory underlying nuclear physics. In recent years there is progress towards investigating the nucleon structure from first principles of QCD. Although this structure is best revealed in Deep Inelastic Scattering, a consistent analysis has to be performed in a fully non-perturbative scheme. The only known method for this purpose are lattice simulations. We first sketch the ideas of Monte Carlo simulations in lattice gauge theory. Then we comment in particular on the issues of chiral symmetry and operator mixing. Finally we present our results for the Bjorken variable of a single quark, and for the second Nachtmann moment of the nucleon structure functions.

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