10.12.12 16:15

Nucleon Form Factors from Lattice QCD

Bastian Knippschild (Bonn)

Calculations of the electromagnetic form factors and the nucleon axial charge in lattice QCD with two flavours of dynamical quarks will be presented.  A detailed investigation of systematic errors is performed, with a particular focus on contributions from excited states to three-point correlation functions.  The use of summed operator insertions allows for a much better control over such contaminations from the excited states.  This better control causes our findings to be in good agreement with experimental data.


(Seminarraum II)

Kategorie: Feldtheorie