A Strong QCD Enhancement of CP Violation in Charmed Meson Decays?
Frank E. Close, Harry J. Lipkin
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 π at 1.8GeV and may generate a strong analogue of Penguin mixing together with a measurable CP-violation in D and Ds decays.
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