def
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geometricMixing
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IndisputableMonolith.StandardModel.WeinbergAngle on GitHub at line 126.
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123 total : ℕ := 8
124
125/-- The geometric mixing angle from 8-tick structure. -/
126noncomputable def geometricMixing (g : EightTickGeometry) : ℝ :=
127 (g.u1_phases : ℝ) / ((g.su2_phases : ℝ) + (g.u1_phases : ℝ))
128
129/-- **THEOREM**: Simple geometric ratio gives sin²(θ_W) = 1/4 = 0.25.
130
131 This is close but not exact. The correction comes from φ. -/
132theorem simple_geometric_ratio : geometricMixing ⟨3, 1, 8⟩ = 1/4 := by
133 unfold geometricMixing
134 norm_num
135
136/-- The φ-correction to the geometric ratio.
137
138 sin²(θ_W) = 1/4 × (1 - ε)
139 where ε = (φ - 1) / (12φ) ≈ 0.032
140
141 This gives: 0.25 × (1 - 0.032) = 0.242 × 0.968 = 0.234
142
143 Still a bit too large, but capturing the right structure. -/
144noncomputable def phiCorrection : ℝ := (phi - 1) / (12 * phi)
145
146noncomputable def correctedPrediction : ℝ := (1/4) * (1 - phiCorrection)
147
148/-! ## Grand Unified Theory Connection -/
149
150/-- At the GUT scale (~10¹⁶ GeV), the couplings unify.
151
152 sin²(θ_W)(GUT) = 3/8 = 0.375 (SU(5) prediction)
153
154 The running from GUT to M_Z scale is:
155 sin²(θ_W)(M_Z) ≈ 0.23
156