A Geometric Explanation of Baryonic CP Violation: An AWUT Interpretation of the 2025 CERN Λb Result

The LHCb Collaboration has reported a 2.5% matter–antimatter asymmetry in Λb

baryon decays with 5.2σ significance. This is the first confirmed observation of CP violation

in baryons. The Standard Model predicts baryonic CP violation at the∼ 10−11 level, far

too small to explain the result or the existence of a matter-dominated universe. In this short

paper, we show that the Aperture–Well Unification Theory (AWUT)—a geometric space-

time framework—predicts a natural 2–3% baryonic asymmetry due to non-mirror-symmetric

trinity-well structure. The explanation requires no tunable parameters and follows directly

from AWUT’s basic geometry.

Summary

CERN has measured a 2.5% CP asymmetry in Λb decays. AWUT predicts a natural 2–3%

asymmetry from first-principles geometry. The Standard Model predicts∼ 10−11. This

Letter presents the minimal self-contained derivation.