Transverse Structure of Nucleon Parton Distributions from Lattice QCD

This work presents the first calculation in lattice QCD of three moments of spin-averaged and spin-polarized generalized parton distributions in the proton. It is shown that the slope of the associated generalized form factors decreases significantly as the moment increases, indicating that the transverse size of the light-cone quark distribution decreases as the momentum fraction of the struck parton increases.Comment: 4 pages, 1 figur

Calculation of Nucleon Electromagnetic Form Factors

The fomalism is developed to express nucleon matrix elements of the electromagnetic current in terms of form factors consistent with the translational, rotational, and parity symmetries of a cubic lattice. We calculate the number of these form factors and show how appropriate linear combinations approach the continuum limit.Comment: Lattice 2002 (hadronic matrix elements) 3 page

Light Quark Physics with Dynamical Wilson Fermions

We present results for spectroscopy, quark masses and decay constants obtained from SESAM's and TkL's large statistics simulations of QCD with two dynamical Wilson fermions.Comment: 3 pages; to appear in the proceedings of Lat.'9

Continuum Extrapolation of Moments of Nucleon Quark Distributions in Full QCD

Moments of light cone quark density, helicity, and transversity distributions are calculated in unquenched lattice QCD at $\beta = 5.5$ and $\beta = 5.3$ using Wilson fermions on $16^3 \times 32$ lattices. These results are combined with earlier calculations at $\beta = 5.6$ using SESAM configurations to study the continuum limit

Continuum extrapolation of moments of nucleon quark distributions in full QCD

Moments of light cone quark density, helicity, and transversity distributions are calculated in unquenched lattice QCD at $\beta = 5.5$ and $\beta = 5.3$ using Wilson fermions on $16^3 \times 32$ lattices. These results are combined with earlier calculations at $\beta = 5.6$ using SESAM configurations to study the continuum limit.Comment: Lattice 2002 (hadronic matrix elements) 3 pages, 1 figur