The Higgs quartic — near-criticality from the free seam
Frontier and open physical interfaces
The seam UV is the free chiral [formula in source] fixed point ( v158_fixed_point_stable.py): Gaussian, with no relevant and no marginal interactions. The Higgs self-coupling [formula in source] is the one marginal scalar coupling, so a free seam forces it to the Gaussian point there: [formula in source] the Shaposhnikov–Wetterich double-criticality condition — here derived from the free seam rather than postulated.
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documents/tfpt_4_frontier/sections/001-source.tex · lines 262 to 300
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