Search For Rare Decays Of Charmed D Mesons

A search for flavor changing neutral current (FCNC) and lepton number violation (LNV) decays of charmed D mesons is performed using 33pb(-1) data around Psi(3770) collected by BES II detector at BEPC. Four decay modes of D-0((K) over bar (0) e(+)e(-), Phi e(+)e(-), rho(0)e(+)e(-) and (K) over bar (*0)e(+)e(-)) and six decay modes of D+(K(-)e(+)e(+), K(+)e(+)e(-), pi(-)e(+)e(+), pi(+)e(+)e(-), K(*-)e(+)e(+) and K(*+)e(+)e(-)) are presented. No evidence is found for the above decays, therefore, the upper limits at 90% confidence level are set. The limits of two D+ decays modes, D+-> K(*-)e(+)e(+) (sic) D+-> K(*+)e(+)e(-) have not been reported previously.