"Figure 1a" of "Azimuthal-angle dependence of charged-pion-interferometry measurements with respect to 2$^{\rm nd}$- and $3^{\rm rd}$-order event planes in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV"

The azimuthal dependence of $R^2_s$, $R^2_o$, $R^2_l$, and $R^2_{os}$ for charged pions in 0.2 < $k_T$ < 2.0 GeV/$c$ with respect to second-(a)-(d) and third-order (e)-(h) event plane in Au + Au collisions at $\sqrt{S_{NN}}$ 200 GeV.针对√S_NN=200 GeV金金碰撞中横动量$k_T$处于0.2 < $k_T$ < 2.0 GeV/$c$区间的带电π介子，其$R^2_s$、$R^2_o$、$R^2_l$及$R^2_{os}$相对于二阶（a)-(d)与三阶（e)-(h)事件平面的方位角依赖性。