A Strong QCD Enhancement of CP Violation in Charmed Meson Decays?
classification
✦ hep-ph
keywords
strongdecaysanaloguecandidatecharmedcp-violationdegeneracydegrees
read the original abstract
The mass difference of $c$ and $u$ quarks is similar to the energy needed to excite gluonic degrees of freedom in strong QCD. This underpins the degeneracy of $D$ and a recently observed candidate hybrid excitation of the $\pi$ at$\sim 1.8$GeV and may generate a strong analogue of Penguin mixing together with a measurable CP-violation in $D$ and $D_s$ decays.
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