The CKM Matrix

• The parameters of the Standard Electroweak Model are:

• 4 parameters reside in CKM matrix

& fermion masses and mixings

Weak

eigenstates

Mass eigenstates

* In SM ?, A, ?, ? are fundamental parameters

• Does the CKM fully explain quark mixing? CP Violation?

• To detect new physics in flavor changing sector must know CKM well

• Must overdetermine the magnitude and phase of each element

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