two pion production

Model Comparison

From the MAID webpage , I got the values of sig_T, sig_L, sig_TT and sig_LT for W=1.232 and Q2 = 4 and 5 and plotted them as the black (q2= 4) and red (q2=5) lines.
I scaled the cross sections for Q2 = 4 by the dipole form Gd^2(Q2=5)/Gd^2(Q2=4) , Gd(Q2) = 1/(1+Q2/.71)/1+Q2/.71) . The scaled Q2=4 cross sections are shown in the plot as the green line and agrees very well with the actual Q2=5 values.
Then I scaled the Q2=4 cross sections by Gd^2(Q2=6.3)/Gd^2(Q2=4). The scaled cross sections are shown in the plot as the blue line. This is the "predicted" cross section.
The black dashed line in the plot is from the SAID webpage for Q2 = 4.
Using the Q2 = 6.3 MAID cross sections ( from scaling the Q2 = 4) , a plot of dsig_cm/domega for different phi_cm are plotted. The dashed black line is the dsig_cm/domega used in SIMC.