Measurement ofD+→KS0K+andDs+→KS0π+branching ratios

Publisher Website

4 December 2009

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 80 (11) , 111101
https://doi.org/10.1103/physrevd.80.111101

Abstract

We report an improved measurement of

D^{+} \to K_{S}^{0} K^{+}

and

D_{s}^{+} \to K_{S}^{0} π^{+}

branching ratios using

605 {fb}^{- 1}

of data collected with the Belle detector at the KEKB asymmetric-energy

e^{+} e^{-}

collider. The measured branching ratios with respect to the Cabibbo-favored modes are

B (D^{+} \to K_{S}^{0} K^{+}) / B (D^{+} \to K_{S}^{0} π^{+}) = 0.1899 \pm 0.0011 \pm 0.0022

and

B (D_{s}^{+} \to K_{S}^{0} π^{+}) / B (D_{s}^{+} \to K_{S}^{0} K^{+}) = 0.0803 \pm 0.0024 \pm 0.0019

where the first uncertainties are statistical and the second are systematic.

Keywords

All Related Versions

This publication has 9 references indexed in Scilit:

Review of Particle Physics
Physics Letters B, 2008
Flavor symmetry and decays of charmed mesons to pairs of light pseudoscalars
Physical Review D, 2008
Overview of the KEKB accelerators
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2003
The Belle detector
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2002
High-energy-physics event generation with Pythia 6.1
Computer Physics Communications, 2001
Analyses of $D^{+} \to K_{S}^{0} K^{+}$ and $D^{+} \to K_{S}^{0} π^{+}$
Physical Review Letters, 1997
Interference between Cabibbo allowed and doubly forbidden transitions in D → KS,L + π′s decays
Physics Letters B, 1995
QED bremsstrahlung in semileptonic B and leptonic τ decays
Physics Letters B, 1993
D-meson lifetimes and decays
Physics Letters B, 1979