# L67: KAON MIXING — epsilon_K FROM Os

**Category:** library_prompt | **Kernel:** PHAT v1.27.5 | **Status:** PENDING

## Prompt

KAON MIXING — epsilon_K FROM Os
Using the CKM matrix from v1.27.5 and the Os phase structure, compute the indirect CP violation parameter epsilon_K for K0-Kbar0 mixing. Compare to PDG epsilon_K = (2.228+/-0.011)e-3. Identify any Os-specific correction to the box diagram. #SuperGrokTOE #KaonMixing #CPviolation