# L68: B MESON MIXING — Delta_m_B

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

## Prompt

B MESON MIXING — Delta_m_B
Using CKM matrix from v1.27.5, compute Delta_m_B for B_d and B_s mixing. Compare to PDG: Delta_m_Bd=0.5065 ps^{-1}, Delta_m_Bs=17.765 ps^{-1}. Assess whether the Os CKM angles give correct ratio. #SuperGrokTOE #BMesonMixing #Bphysics