0 2 4 6 8 0 0.5 1 1.5 2 2.5 3 Photon energy (eV) Cross section (a.u.) $_{L}$=0 $_{L}$= /4 $_{L}$= /2 0 2 4 6 8 0 0.5 1 1.5 2 Photon energy (eV) Cross section (a.u.) $_{L}$=0 $_{L}$= /4 $_{L}$= /2 0 2 4 6 8 0 0.5 1 1.5 2 Photon energy (eV) Cross section (a.u.) $_{L}$=0 $_{L}$= /4 $_{L}$= /2 0 2 4 6 8 0 0.5 1 1.5 2 Photon energy (eV) Cross section (a.u.) $_{L}$=0 $_{L}$= /4 $_{L}$= /2 (a) d=10a$_{0}$ (d) d=500a$_{0}$ (c) d=100a$_{0}$ (b) d=50a$_{0}$ FIG. 3: The photodetachment cross sections of the triatomic anion with different values of d and θ $_{L}$. 13