Amplitude analysis and branching-fraction measurement of Ds+→KS0K−π+π+

Using 6.32 fb$^{-1}$ of $e^+e^-$ collision data collected by the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV,~an amplitude analysis $D^{+}_{s}\rightarrow K^{0}_{S}K^{-}\pi^{+}\pi^{+}$ decays is performed for first time to determine intermediate-resonant contributions. The dominant component $D_s^+ \to K^*(892)^+\overline{K}^*(892)^0$ decay with a fraction $(40.6\pm2.9_{\rm stat}\pm4.9_{\rm sys})$%. Our results are used obtain more precise measurement branching decay, which determined be $(1.46\pm0.05_{\rm stat}\pm0.05_{\rm sys}$)%.