Controlling excited-state contributions with distillation in lattice QCD calculations of nucleon isovector charges g(S)(u-d), g(A)(u-d), g(T)(u-d)

Egerer, C; Richards, D; Winter, F

Egerer, C (reprint author), William & Mary, Dept Phys, Williamsburg, VA 23185 USA.

PHYSICAL REVIEW D, 2019; 99 (3):

Abstract

We investigate the application of the distillation smearing approach, and the use of the variational method with an extended basis of operators facili......

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