2005/10/12 by LHPC collaboration, Robert G. Edwards, R. G. Edwards +15 · 4 citations
Physics and Astronomy · #Chiral perturbation theory #High-Energy Particle Collisions Research #Lattice QCD #Lattice field theory #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Perturbation theory (quantum mechanics) #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Quark #Quark–gluon plasma #Valence (chemistry) #hep-lat #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevlett.96.052001
published as Phys.Rev.Lett.96:052001,2006 · 4 pages, 2 figures, submitted to Physical Review Letters. Several typos corrected
arxiv created 2005/10/12 · openalex publication_date 2006/02/07 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.