The nucleon electromagnetic form factors from Lattice QCD

Details The nucleon electromagnetic form factors from Lattice QCD The nucleon electromagnetic form factors from Lattice QCD

2006-05-18

arxiv.org/abs/hep-lat/0605017v2

Phys.Rev.D74:034508,2006

Physics

High Energy Physics

High Energy Physics - Lattice

Typos corrected, one reference added, version accepted for publication in Phys. Rev. D, 14 pages, 20 figures

Scientific paper

10.1103/PhysRevD.74.034508

We evaluate the isovector nucleon electromagnetic form factors in quenched and full QCD on the lattice using Wilson fermions. In the quenched theory we use a lattice of spatial size 3 fm at beta=6.0 enabling us to reach low momentum transfers and a lowest pion mass of about 400 MeV. In the full theory we use a lattice of spatial size 1.9 fm at beta=5.6 and lowest pion mass of about 380 MeV enabling comparison with the results obtained in the quenched theory. We compare our lattice results to the isovector part of the experimentally measured form factors.

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