A Lattice Study of the Magnetic Moment and the Spin Structure of the Nucleon

Abstract

Using an approach free from momentum extrapolation, we calculate the nucleon magnetic moment and the fraction of the nucleon spin carried by the quark angular momentum in the quenched lattice QCD approximation. Quarks with three values of lattice masses, 210, 124 and 80 MeV, are formulated on the lattice using the standard Wilson approach. At every mass, 100 gluon configurations on 16^3 x 32 lattice with β=6.0 are used for statistical averaging. The results are compared with the previous calculations with momentum extrapolation. The contribution of the disconnected diagrams is studied at the largest quark mass using noise theory technique.

14 pages, 3 figures, Talk given at Lattice2001, Berlin, Germany

References in corpus (4)

• Hard Exclusive Reactions and the Structure of Hadrons
• Is the Sullivan Process Compatible with QCD Chiral Dynamics?
• Leading Chiral Contributions to the Spin Structure of the Proton
• Constructing Parton Convolution in Effective Field Theory

Cited by in corpus (17)

• Generalized Parton Distributions
• Unraveling hadron structure with generalized parton distributions
• Quark Imaging in the Proton Via Quantum Phase-Space Distributions
• Nucleon structure from mixed action calculations using 2+1 flavors of asqtad sea and domain wall valence fermions
• Generalized Parton Distributions from Lattice QCD
• Nucleon form-factors of the energy momentum tensor in the chiral quark-soliton model
• Nucleon electromagnetic form factors on the lattice and in chiral effective field theory
• Baryon magnetic moments in the background field method
• Nuclear matrix elements from lattice QCD for electroweak and beyond-Standard-Model processes
• Chiral structure of nucleon gravitational form factors
• The pion mass dependence of the nucleon form-factors of the energy momentum tensor in the chiral quark-soliton model
• Magnetic moments of vector, axial, and tensor mesons in lattice QCD
• Flavour singlet physics in lattice QCD with background fields
• Continuum Moment Equations on the Lattice
• Generalized Parton Distributions and the Spin Structure of the Nucleon
• Proton spin after 30 years: what we know and what we don't?
• Resummation for Lattice QCD Calculation of Generalized Parton Distributions at Nonzero Skewness