The nucleon axial charge in full lattice QCD

Details The nucleon axial charge in full lattice QCD The nucleon axial charge in full lattice QCD

2005-10-11

arxiv.org/abs/hep-lat/0510062v2

Phys.Rev.Lett.96:052001,2006

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages, 2 figures, submitted to Physical Review Letters. Several typos corrected

Scientific paper

10.1103/PhysRevLett.96.052001

The nucleon axial charge is calculated as a function of the pion mass in full QCD. Using domain wall valence quarks and improved staggered sea quarks, we present the first calculation with pion masses as light as 354 MeV and volumes as large as (3.5 fm)^3. We show that finite volume effects are small for our volumes and that a constrained fit based on finite volume chiral perturbation theory agrees with experiment within 7% statistical errors.

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