Measurements of $e^+e^- \to K_{S}^{0}K^{\pm}\pi^{\mp}\pi^0$ and $K_{S}^{0}K^{\pm}\pi^{\mp}\eta$ at center-of-mass energies from $3.90$ to $4.60~\mathrm{GeV}$

Abstract

Using 5.2 fb$^{−1}$ $e^+e^−$ annihilation data samples collected with the BESIII detector, we measure the cross sections of $e^+e^- \to K_S^0 K^\pm \pi^\mp \pi^0$ and $K_{S}^{0}K^{\pm}\pi^{\mp}\eta$ at center-of-mass energies from 3.90 to 4.60 GeV. In addition, we search for the charmonium-like resonance $Y(4260)$ decays into $K_{S}^{0}K^{\pm}\pi^{\mp}\pi^0$ and $K_{S}^{0}K^{\pm}\pi^{\mp}\eta$, and $Z_c^{0,\pm}(3900)$ decays into $K_{S}^{0}K^{\pm}\pi^{\mp,0}$ and $K_{S}^{0}K^{\pm}\eta$. Corresponding upper limits are provided since no clear signal is observed.