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)Channel: (pi0,p) (pi0,n) (pi+,n) (pi-,p)
Choose kinematical variables
choose an independent (running)
variable: Q² W
choose values for Q², W, step
size and maximum value:
Q² (GeV/c)²
W (MeV)
increment
upper value
click here
Change of model parameters:
O(q3) (all couplings in GeV-2)