Measurements of Cabibbo-suppressed hadronic decay fractions of charmed D0 and D+ mesons

Using data collected with the BESII detector at Beijing Electron-Positron Collider, the measurements of relative branching fractions for seven Cabibbo-suppressed hadronic weak decays D0→K−K+, π−π+, K−K+π+π− and π−π+π+π−, D+→K¯0K+, K−K+π+ and π−π+π+ are presented.