Further details can be found in D. Drechsel and
L. Tiator , J. Phys. G 18 (1992) 449-497 (scanned
version) (for expressions with CGLN amplitudes) and G. Knöchlein,
D. Drechsel and L. Tiator, Z. Phys. A 352 (1995) 327-343 (for expressions
with helicity amplitudes) postscript
compressed (431 kB) and nucl-th/9506029
.Channel: (pi0,p) (pi0,n) (pi+,n) (pi-,p)
Amplitudes: CGLN(F1,...,F6) Helicity(H1,...,H6) Spin(S1,...,S6)
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):
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choose an independent (running) variable: Q² W Theta
choose values for Q², W, Q, step size and maximum value:
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