Nucleon electromagnetic form factors in twisted mass lattice QCD

Details Nucleon electromagnetic form factors in twisted mass lattice QCD Nucleon electromagnetic form factors in twisted mass lattice QCD

2011-02-10

arxiv.org/abs/1102.2208v1

Phys.Rev.D83:094502,2011

Physics

High Energy Physics

High Energy Physics - Lattice

ETM Collaboration, 14 pages, 15 Figures

Scientific paper

10.1103/PhysRevD.83.094502

We present results on the nucleon electromagnetic form factors within lattice QCD using two flavors of degenerate twisted mass fermions. Volume effects are examined using simulations at two volumes of spatial length L=2.1 fm and L=2.8 fm. Cut-off effects are investigated using three different values of the lattice spacings, namely a=0.089 fm, a=0.070 and a=0.056 fm. The nucleon magnetic moment, Dirac and Pauli radii are obtained in the continuum limit and chirally extrapolated to the physical pion mass allowing for a comparison with experiment.

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