Paper VII - Standard Model Recovery and the Unification of Four Forces in 5D SpaceTime+

This paper extends the five–dimensional SpaceTime+ framework to a complete geometric recovery of the Standard Model. As the 5D formalism already unifies gravitation and electromagnetism through curvature orientation, this work demonstrates that the weak and strong nuclear interactions arise from additional
5D curvature modes projected into 4D. The resulting 18 curvature degrees of freedom map directly onto the SU(3)×SU(2)×U(1) symmetry of the Standard Model, yielding a purely geometric origin for charge, colour, and interaction strength. This framework shows that all four fundamental forces emerge as different curvature manifestations of a single 5D metric tensor, completing the classical unification of field, mass, and charge.

The author acknowledges the OpenAI ChatGPT platform for algebraic verification, structural analysis, and LaTeX preparation. The unified curvature
model, mapping of the Standard Model symmetries, and theoretical synthesis are original
work by Robert T. Morrow.