CGLN and Helicity Amplitudes
Channel:
η p
η n
η' p
η' n
Amplitudes:
CGLN(F
1
,...,F
6
)
Helicity(H
1
,...,H
6
)
Model input (on and off):
Background:
Born
Regge
Resonances:
S
11
(1535)
S
11
(1650)
S
11
(1895)
P
11
(1440)
P
11
(1710)
P
11
(1880)
P
11
(2100)
P
13
(1720)
P
13
(1900)
D
13
(1520)
D
13
(1700)
D
13
(1875)
D
13
(2120)
D
15
(1675)
D
15
(2060)
F
15
(1680)
F
15
(1860)
F
15
(2000)
F
17
(1990)
G
17
(2190)
G
19
(2250)
Choose kinematical variables:
choose an independent (running) variable:
W
Θ
η
choose values for W, Θ
η
,
step size and maximum value:
W (MeV)
Θ
η
(deg)
increment
upper value
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