Proton–Neutron Topological Derivation and the Neutron Lifetime Puzzle Under MMA-DMF

Within MMA-DMF, the proton-neutron sector is formulated as a topological defect problem in a thermo-viscous scalar vacuum locked to a single rigidity scale, MUV = 100 TeV. In this picture, the proton acts as the proton-like local minimum anchor in the constrained physical sector, while free-neutron beta decay is interpreted as the metastable topological relaxation of a constrained neutron configuration toward the proton branch. The lifetime chain is organized by the effective-density law meff(rhoeff) -> Gammageo(rhoeff) -> taurel(rhoeff) -> taun(rhoeff), and the validated final computational closure line is: proton-like local minimum anchor -> certified local index-1-like saddle neighborhood -> barrier/metastability proxy -> robust local escape functional -> controlled neutron-lifetime observable bridge -> attached absolute lifetime normalization -> explicit local one-scale consistency test at M = 100 TeV. The final numerical line therefore yields a controlled dimensionless bridge together with an attached absolute normalization centered at 879.4 s and a supported interval of 830.99-963.43 s, with confirmation-mesh consistency near 0.998, and a local one-scale consistency test in which M = 100 TeV is supported whereas the neighboring controls M = 99 TeV and M = 101 TeV fail under the same attached criterion by more than seven orders of magnitude.