The Unified Form Factor Structure of the Proton and the Higgs Portal Resonance

Licensed under a Creative Commons Attribution NonCommercial NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). X-h-p We propose a unified theoretical framework linking three seemingly independent quantities the proton mass, the proton magnetic moment, and the proton spin decomposition. Using the QCD energy momentum tensor together with the electromag netic form factors, we derive a compact relation showing that these observables arise as different projections of a single non perturbative quark gluon structure. We embed this structure within a Higgs portal dark matter model with thermal resonance near the electroweak phase transition. The Higgs coupling induces shifts in the gravitational form factor A(Q2 ), potentially linking dark sector dynamics to hadronic properties at the precision measurement level.