13 0 10 20 30 40 d σ$^{L}$ /dt [ b/GeV 2 ] JLAB 0 10 20 30 40 JLAB 0 10 20 30 JLAB 0 3 6 9 JLAB 0 10 20 30 d T  /dt [ b/GeV 2 ] 0 10 20 30 0 10 20 30 0 10 20 -8 -4 0 4 8 d TT  /dt [ b/GeV 2 ] -8 -4 0 4 8 -8 -4 0 4 8 -4 -2 0 2 4 0.03 0.06 0.09 -t [GeV$^{2}$] -8 -4 0 4 8 d LT  /dt [ b/GeV 2 ] 0.03 0.06 0.09 -t [GeV$^{2}$] -8 -4 0 4 8 0.05 0.1 0.15 -t [GeV$^{2}$] -8 -4 0 4 8 0.1 0.2 0.3 -t [GeV$^{2}$] -3 0 3 Q$^{2 }$= 0.60 GeV 2 Q$^{2 }$= 1.0 GeV 2 Q$^{2 }$= 0.75 GeV 2 Q$^{2 }$= 1.60 GeV 2 W = 1.95 GeV W = 1.95 GeV W = 1.95 GeV W = 1.95 GeV FIG. 7: (Color online) − t dependence of l/t partial differential cross sections in exclusive reaction p ( γ $^{∗}$, π $^{+}$) n . The experimental data are from the F π -1 experiment at JLAB [2]. The notations for the curves are the same as in Figure 6.