$\Delta \mathit C$ = 2 VIA MIXING
Allowed in second-order weak interactions, e.g. mixing.
$\vert{}{\mathit m}_{{{\mathit D}_{{{1}}}^{0}}}–{\mathit m}_{{{\mathit D}_{{{2}}}^{0}}}\vert{}$ = $x\Gamma $ ($92$ $\pm12$) $ \times 10^{8}$ $\hbar{}$ s${}^{-1}$
($\Gamma _{{{\mathit D}_{{{1}}}^{0}}}$ $-$ $\Gamma _{{{\mathit D}_{{{2}}}^{0}}})/\Gamma $ = 2$\mathit y$ $0.0134$ $\pm0.0008$      (S = 1.4)