Multipoles
The multipoles can be given in 4 unique sets of isospin or charge channels
(click here for a larger image):

Further details can be found in D. Drechsel and L. Tiator, J. Phys. G 18 (1992) 449-497. (scanned version)


Type of the multipoles: (p(1/2), n(1/2), 3/2) (1/2, 0, 3/2) (0, +, - ) charge channels

Choose pion angular momentum l : 

Choose multipoles: El+ El- Ml+ Ml- Ll+ Ll- Sl+ Sl-


Model parameters: Born Rho Omega P33(1232) P11(1440)
D13(1520) S11(1535) S31(1620) S11(1650) F15(1680) D33(1700)
Change of S-wave low-energy corrections and type of pi-N coupling (click here for details)
E0+
S0+
PS-PV mixing range parameter Lambda 

Change values of resonance couplings (relative to standard values):
Isospin 3/2
P33(1232)
 
S31(1620)
D33(1700)
M1+
E1+
S1+
E0+
S0+
M2-
E2-
S2-
Proton Isospin 1/2
P11(1440)
 
D13(1520)
 
S11(1535)
 
S11(1650)
F15(1680)
M1-
S1-
 
M2-
E2-
 S2-  
E0+
S0+
 
E0+
S0+
 
M3-
E3-
S3-
 
 
Neutron Isospin 1/2
P11(1440)
 
D13(1520)
 
S11(1535)
 
S11(1650)
F15(1680)
M1-
S1-
 
M2-
E2-
 S2-  
E0+
S0+
 
E0+
S0+
 
M3-
E3-
S3-
 
 

Choose kinematical variables

choose an independent (running) variable: 
choose values for Q², W, step size and maximum value:
Q² (GeV/c)²
W (MeV)
increment
upper value



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