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CP Violation by A. I. Sanda, I. I. Bigi

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14

CP violation in charm decays – the dark horse

I know she invented fire –but what has she done recently?

 

 

14.1 On the uniqueness of charm

The well travelled quote above concisely describes a widespread attitude towards charm. Charm dynamics is recognized as physics with a great past: it was instrumental in driving the paradigm shift from quarks as mathematical entities to physical objects and in providing essential support for accepting QCD as the theory of the strong interactions. Yet it is often viewed as one without a future. For the predicted SM electroweak phenomenology for ΔC ≠ 0 is on the ‘dull’ side: the CKM parameters are ‘known’ from other sources, oscillations slow, CP asymmetries small and loop driven decays extremely rare. ...

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