Nucleon structure from lattice QCD - recent achievements and perspectives

Abstract

We present recent developments in lattice QCD simulations as applied in the study of hadron structure. We discuss the challenges and perspectives in the evaluation of benchmark quantities such as the nucleon axial charge and the isovector parton momentum fraction, as well as, in the computation of the nucleon $\sigma$-terms, which involve the calculation of disconnected quark loop contributions.

Comments: Invited talk at the 13th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 2013), Rome, Italy, 30 Sept- Oct. 4, 2013. 6 pages, 10 figures