Study of $D^{+} \to K_{S}^{0}K^{*}(892)^{+}$ in $D^{+} \to K_{S}^{0} K_{S}^{0} \pi^{+}$

TL;DR

This study presents the first amplitude analysis of the decay D+ to K_S^0 K_S^0 pi+, measuring its branching fraction and identifying the dominant intermediate process, using data from the BESIII detector at 3.773 GeV.

Contribution

It provides the first amplitude analysis of D+ to K_S^0 K_S^0 pi+ decay and measures its branching fraction and dominant intermediate process.

Findings

Branching fraction of D+ to K_S^0 K_S^0 pi+ is (2.97 ± 0.09 ± 0.05)×10^{-3}.

Dominant process is D+ to K_S^0 K*(892)+, with a branching fraction of (8.72 ± 0.28 ± 0.15)×10^{-3}.

First amplitude analysis of this decay mode.

Abstract

Using a data sample of $e^+e^-$ collisions corresponding to an integrated luminosity of 7.93 $\rm fb^{-1}$ collected with the BESIII detector at the center-of-mass energy 3.773~GeV, we perform the first amplitude analysis of the decay $D^{+} \to K_{S}^{0} K_{S}^{0} \pi^{+}$. The absolute branching fraction of $D^{+} \to K_{S}^{0}K_{S}^{0} \pi^{+}$ is measured to be $(2.97 \pm 0.09_{\rm stat.} \pm 0.05_{\rm syst.})\times10^{-3}$. The dominant intermediate process is $D^{+} \to K_{S}^{0}K^{*}(892)^{+}$, whose branching fraction is determined to be $(8.72 \pm 0.28_{\rm stat.} \pm 0.15_{\rm syst.}) \times 10^{-3}$, including all the $K^*(892)^+$ decays.