5-Fold Differential Cross Section

for unpolarized target and without recoil polarization

The following notation of the coincidence cross section will be used in our calculations. Further details can be found in D. Drechsel and L. Tiator, J. Phys. G 18 (1992) 449-497. (scanned version)

On this page the complete 5-fold differential cross section and in addition the individual 2-fold cross sections ST, SL, SLT, STT and SLT' will be calculated using electron kinematics. For virtual photon kinematics see our alternative page.
Note: The longitudinal cross sections (SL, SLT and SLT') differ from those in Drechsel and Tiator, J. Phys. G18 (1992) 449. Here we do not use the longitudinal polarization epsilon_L.

Channel: (pi0,p) (pi0,n) (pi+,n) (pi-,p)
Model parameters: Born Rho Omega P33M(1232) P33E(1232)

P11(1440) D13(1520) S11(1535) S11(1650) F15(1680) D33(1700)

Choose kinematical variables:

Enter values for electron beam energy Ei, scattered electron energy Ef, electron scattering angle Theta_el and electron polarization h_el:

[ Ei (MeV) ] [ Ef (MeV) ] [ Theta_el (deg) ] [ h_el ]

Enter (lower) values for pion angles in the cm frame Theta and Phi:

[ Theta (deg) ] [ Phi (deg) ]

Choose one independent (running) variable: Theta Phi

[increment] [upper value]

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