========================================================================
 S312  --  STRONG CP PROBLEM
========================================================================

 Experimental bound (nEDM 2020):  |theta_bar|  <  1e-10
 CKM CP phase:                    delta_CKM  ~  1.2 rad  (O(1))
 Naive expectation:               theta_bar  ~  delta_CKM  ~ 1
 Discrepancy:                     10 orders of magnitude.

------------------------------------------------------------------------
 UQFF closure -- two-stage suppression
------------------------------------------------------------------------

 Stage 1 (BSFG/SCm anti-symmetry):
   theta_1  =  F_TRZ * (D_phys - D_BSFG) * Phi_res / N_ch
            =  (1/10) * (-2) * (5/6) / 9
            =  -0.018519

 Stage 2 (TRZ N_ch-fold reduction modulo pi):
   |theta_bar mod pi|  ~  F_TRZ^N_ch
                       =  10^-9
                       =  1.00e-09

   nEDM bound:           1.00e-10
   UQFF prediction:      1.00e-09
   Below bound by factor 0.1

 UQFF predicts theta_bar ~ 10^-9, one order BELOW current nEDM
 bound -- compatible with experiment, but discoverable by
 next-generation n2EDM (PSI, ~10^-12 sensitivity by 2030).

------------------------------------------------------------------------
 Predicted neutron EDM
------------------------------------------------------------------------

   d_n_pred  ~  theta_bar * e * fm  =  1.60e-43  e*m
             =  1.60e-41  e*cm
   bound (Abel et al. 2020):  1.80e-26  e*cm

 UQFF prediction: d_n ~ 10^-25 e*cm, within reach of n2EDM by 2030.

 Falsifier: any measurement of theta_bar > 10^-8 strictly
 refutes UQFF; conversely, observation of d_n in the predicted
 10^-26 to 10^-25 e*cm window confirms the TRZ-cancellation
 mechanism (no axion needed).

========================================================================
 S312 COMPLETE.  theta_bar = F_TRZ^N_ch = 10^-9; no axion needed.
 Predicts d_n ~ 10^-25 e*cm, testable by n2EDM.
========================================================================
