Updates on Nucleon Form Factors from Clover-on-HISQ Lattice Formulation
Abstract
Updates on results for the electric, magnetic and axial vector form factors are presented. The data analyzed cover high statistics measurements on 11 ensembles generated with 2+1+1 flavors of HISQ fermions by the MILC collaboration. The data cover the range 0.057\;fm < a < 0.15\;fm in lattice spacing, 135\;MeV < Mπ < 320\;MeV in the pion mass and 3.3 < Mπ L < 5.5 in the lattice size. Fits to control excited-state contamination use up to 3-states in the spectral decomposition of the 3-point functions. The simultaneous chiral-continuum-finite-volume fits include leading order corrections in each of the three variables.
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