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)
Model parameters: Born Rho Omega P33(1232)
P11(1440) D13(1520) S11(1535) S11(1650) F15(1680) D33(1700)
Change values of resonance couplings (relative
to standard values):
P33(1232)
P11(1440)
S11(1535)
M1+
E1+
S1+
M1-
S1-
E0+
Choose kinematical variables
choose an independent (running)
variable: Q² W
choose values for Q², Wstep
size and maximum value:
Q² (GeV/c)²
W (MeV)
increment
upper value
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