Measurement of relative branching fractions of D° Cabibbo-suppressed decays

Abstract

The decay modes D 0→K −π +, K −K +, π −π +, K −π −π +π + and π −π −π +π + have been studied by the hadroproduction experiment WA82. The following ratios of branching fractions have been measured: B (D 0→K −K +) B (D 0→π −π +)=2.23±0.81±0.46 , B (D 0→K −K +) B (D 0→K −π +)=0.107±0.029±0.015 , B (D 0→π −π +) B (D 0→K −π +)=0.048±0.013±0.008 , B (D 0→π −π −π +π +) B (D 0→K −π −π −π +π +)=0.115±0.023±0.016 .