Li Wei-dong

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We established a method on measuring the D −D0 mixing parameter y for BESIII experiment at the BEPCII ee collider. In this method, the doubly tagged ψ(3770)→DD0 events, with one D decays to CP -eigenstates and the other D decays semileptonically, are used to reconstruct the signals. Since this analysis requires good e/π separation, a likelihood approach,(More)
The electrochemical-voltammetry behavior of vanillin, heliotropin, anisaldehyde on the surface of Pt, Au electrodes in acid solution has been studied by means of the electrochemical cyclic voltammetry method. It was found that the electrochemical processes of them are irreversible on both Pt and Au electrodes. The electrochemical activity of vanillin is(More)
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