Assess decoupling of fermion doublers via increasing the Wilson–Yukawa coupling

Ascertain whether increasing the Wilson–Yukawa coupling G_W in a lattice Standard Model formulation—where fermion mass terms are replaced by Higgs-field Yukawa couplings and the Wilson term parameter r is replaced by G_W—can decouple fermion doublers while preserving the intended continuum chiral and gauge properties.

Background

Smit discusses a lattice version of the Standard Model employing Wilson fermions, where the Wilson parameter r is generated by a Yukawa-like coupling G_W to the Higgs field. This approach raises the question of whether tuning G_W could remove fermion doublers.

He notes that presenting full details was beyond the scope of the referenced work and explicitly flags uncertainty about whether increasing G_W would successfully decouple the doublers, motivating subsequent investigations into Wilson–Yukawa models and their phase structure.