Measurement of the D+ --> pi+ pi0 and D+ --> K+ pi0 Branching Fractions

Abstract

We present measurements of the branching fractions for the Cabbibo suppressed decays D+ --> pi+ pi0 and D+ --> K+ pi0 based on a data sample corresponding to an integrated luminosity of 124.3 fb-1. The data were taken with the BABAR detector at the PEP-II B Factory operating on and near the Y(4S) resonance. We find BR(D+ --> pi+ pi0) = (1.22 +/- 0.10 +/- 0.08 +/- 0.08) * 10^(-3) and BR(D+ --> K+ pi0) = (2.46 +/- 0.46 +/- 0.24 +/- 0.16) * 10^(-4), where the first uncertainty is statistical, the second systematic and the last error is due to the uncertainties in the absolute branching fraction scale for D+ mesons. This represents the first observation of the doubly Cabibbo-suppressed D+ --> K+ pi0 decay mode and an improved measurement of the D+ --> K+ pi0 branching fraction.

8 pages, 5 postscript figures

References in corpus (1)

• New Measurements of Cabibbo-Suppressed Decays of D Mesons in CLEO-c

Cited by in corpus (8)

• Charm Meson Decays
• The Standard Model confronts CP violation in $D^0\to {\pi }^{+}{\pi }^{-}$ and $D^0\to K^{+}{K}^{-}$
• First Observation of Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: ${\Lambda }_c^{+}\to p{K}^{+}{\pi }^{-}$
• Measurements of absolute branching fractions for $D$ mesons decays into two pseudoscalar mesons
• Strong phases, asymmetries, and SU(3) symmetry breaking in D --> K pi decays
• Hadronic D and D_s Meson Decays
• Observation of CP violation in $D^0\to K^{-}{\pi }^{+}$ as a smoking gun for New Physics
• Branching Fraction for the Doubly-Cabibbo-Suppressed Decay D^+ --> K^+ pi^0