Why cannot ions form outflow for electron-only reconnection in kinetic turbulence?

Electron-only magnetic reconnection, in which ions do not couple, has recently been observed in the turbulent magnetosheath and magnetotail and is associated with magnetic flux rope coalescence. This paper reproduces the electron-only reconnection that in turbulent plasma environments via 2.5D particle-in-cell simulations. By statistical analysis and study of individual ion trajectories. We have discovered the reason why Electron-only magnetic reconnection ions cannot form an out flow in turbulence. Due to the weak magnetization effect of ions in turbulence, it is difficult for ions to enter the magnetic reconnection structure from the inflow region (only about 10% in our study). Due to the large cyclotron radius of ions in turbulence compared with the reconnection structure, it is difficult for the reconnected ions to be effectively deflected by the normal magnetic field to form an outflow. The ions are mainly affected by various electric fields generated by magnetic island motion in turbulence. We compared the results with standard magnetic reconnection and performed an energy analysis.