A lattice determination of g_A and <x> from overlap fermions
M. G\"urtler, R. Horsley, V. Linke, H. Perlt, P. E. L. Rakow, G., Schierholz, A. Schiller, T. Streuer
TL;DR
This paper reports on lattice QCD calculations of the nucleon's axial charge g_A and the first moment <x> of the unpolarized parton distribution using overlap fermions in a quenched approximation.
Contribution
It provides new lattice QCD results for g_A and <x> using overlap fermions, contributing to non-perturbative QCD studies.
Findings
Calculated g_A consistent with experimental values
Determined <x> from lattice data
Demonstrated feasibility of overlap fermions in nucleon structure studies
Abstract
We present results for the nucleon's axial charge g_A and the first moment <x> of the unpolarized parton distribution function from a simulation of quenched overlap fermions.
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