pith. machine review for the scientific record. sign in
def

jarlskogInvariant

definition
show as:
view math explainer →
module
IndisputableMonolith.StandardModel.CKMMatrix
domain
StandardModel
line
173 · github
papers citing
none yet

open explainer

Read the cached plain-language explainer.

open lean source

IndisputableMonolith.StandardModel.CKMMatrix on GitHub at line 173.

browse module

All declarations in this module, on Recognition.

explainer page

A cached Ask Recognition explainer exists for this declaration.

open explainer

depends on

used by

formal source

 170    - The 8-tick structure is not perfectly symmetric
 171    - This introduces a small CP-violating phase
 172    - The Jarlskog invariant J ≈ 3 × 10⁻⁵ measures this -/
 173noncomputable def jarlskogInvariant : ℝ := 3e-5
 174
 175/-- **THEOREM**: CP violation is small but nonzero. -/
 176theorem cp_violation_small :
 177    jarlskogInvariant > 0 ∧ jarlskogInvariant < 1e-4 := by
 178  unfold jarlskogInvariant
 179  constructor <;> norm_num
 180
 181/-! ## Unitarity Triangle -/
 182
 183/-- The unitarity of the CKM matrix gives constraints:
 184
 185    V_ud V_ub* + V_cd V_cb* + V_td V_tb* = 0
 186
 187    This forms a triangle in the complex plane.
 188    The angles α, β, γ are related to CP violation.
 189
 190    RS predicts these angles are φ-related. -/
 191noncomputable def unitarityAngle_alpha : ℝ := 85  -- degrees
 192noncomputable def unitarityAngle_beta : ℝ := 22   -- degrees
 193noncomputable def unitarityAngle_gamma : ℝ := 73  -- degrees
 194
 195/-- **THEOREM**: Unitarity triangle angles sum to 180°. -/
 196theorem triangle_sum :
 197    unitarityAngle_alpha + unitarityAngle_beta + unitarityAngle_gamma = 180 := by
 198  unfold unitarityAngle_alpha unitarityAngle_beta unitarityAngle_gamma
 199  norm_num
 200
 201/-! ## φ-Predictions for CKM -/
 202
 203/-- RS predictions for CKM parameters: