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.

arXiv commentInvited 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

References in corpus (19)

• Ab-initio Determination of Light Hadron Masses
• 2+1 Flavor Lattice QCD toward the Physical Point
• Excited state baryon spectroscopy from lattice QCD
• Hadronic Uncertainties in the Elastic Scattering of Supersymmetric Dark Matter
• Parton distribution functions and benchmark cross sections at NNLO
• Nucleon structure from mixed action calculations using 2+1 flavors of asqtad sea and domain wall valence fermions
• QCD Analysis of the Polarized World Data
• QCD Analysis of Polarized Deep Inelastic Scattering Data
• The nucleon axial charge from lattice QCD with controlled errors
• QCD with Two Light Dynamical Chirally Improved Quarks: Baryons
• Charmed-Baryon Spectroscopy from Lattice QCD with N_f=2+1+1 Flavors
• Singly and Doubly Charmed J=1/2 Baryon Spectrum from Lattice QCD
• Nucleon isovector structure functions in (2+1)-flavor QCD with domain wall fermions
• Strangeness Contribution to the Proton Spin from Lattice QCD
• Extended hadron and two-hadron operators of definite momentum for spectrum calculations in lattice QCD
• Variational Approach to the Calculation of gA
• Structure and Flow of the Nucleon Eigenstates in Lattice QCD
• <x>_{u-d} from lattice QCD at nearly physical quark masses
• Calculation of fermion loops for ${\eta }^{\prime }$ and nucleon scalar and electromagnetic form factors

Cited by in corpus (7)

• A Lattice Calculation of Parton Distributions
• Baryon spectrum with $N_f=2+1+1$ twisted mass fermions
• Quasi-parton distribution functions: a study in the diquark spectator model
• Gluon momentum fraction of the nucleon from lattice QCD
• Applications of Neural Networks in Hadron Physics
• Improved nonsinglet QCD analysis of the fixed-target DIS data
• Kaon Condensation in Baryonic Fermi Liquid at High Density