Analyses of $D^+\to K_S^0 K^+$ and $D^+\to K_S^0 \pi^+$

TL;DR

This paper reports new measurements of decay branching fractions for D+ mesons into specific final states, analyzes isospin amplitude ratios and phase shifts, enhancing understanding of charm meson decay dynamics.

Contribution

It provides the first precise measurements of these branching fractions and combines them with other data to analyze isospin properties in charm decays.

Findings

Measured branching fractions for D+ to K_S K+ and K_S π+

Extracted isospin amplitude ratios and phase shifts

Improved understanding of charm meson decay mechanisms

Abstract

Using data collected with the CLEO II detector at the Cornell Electron Storage Ring, we present new measurements of the branching fractions for $D^+ \to K_S K^+$ and $D^+ \to K_S \pi^+$. These results are combined with other CLEO measurements to extract the ratios of isospin amplitudes and phase shifts for $D \to KK$ and $D \to K\pi$.