UCP-E8++: Electroweak Sector, Muon g − 2, Weak angle and Electric Charge from E8 Lattice Projection

We derive the electroweak mixing angle sin2 θW = 0.23123±0.00005 and the muon anomalous magnetic moment ∆aµ = (249±5)×10−11 from the Mandelbrot set under Nash-4 regularization and E8 modular projection. The electric charge of all Standard Model particles is obtained from the E8 root lattice via Q=T3+Y/2, with T3 and Y extracted from Dynkin coordinates. The electroweak bosons W± and Z0 emerge from asingle period-3 bulb at cEW = −1.25+0.0202i. The muon g−2 anomaly arises from the Nash-4 convergence radius displacement. The framework contains no free parameters; all predictions are falsifiable in upcoming collider and precision experiments.