A Dynamical Model for Pion Photo- and Electroproduction on the Nucleon
(update info)
S.S. Kamalov
,
S.N. Yang
,
D. Drechsel
,
L. Tiator
Phys. Rev. C 64 (2001) 032201
or
nucl-th/0006068
Phys. Rev. Lett. 83, (1999) 4494
and
nucl-th/0107017
Electromagnetic Multipoles
(E
l±
, M
l±
, L
l±
, S
l±
)
CGLN and Helicity Amplitudes
(F
1
,...,F
6
, H
1
,...,H
6
)
Polarized Response Functions
(R
T
, R
L
, R
LT
, R
TT
, R
LT'
, R
TT'
)
Differential Cross Sections
(d
s
T
, d
s
L
, d
s
LT
, d
s
TT
, ...)
5-fold Diff. Cross Section
(d
5
s, G,
d
s
v
= d
s
T
+
e
d
s
L
+
e
d
s
TT
cos 2
f
+ ...)
Total Cross Sections
(
s
T
,
s
L
,
s
LT'
,
s
TT'
, ...)
Transverse Polarization Observables
(d
s
/d
W
, T,
S
, P, E, F, G, H, ...)
Target Polarization
(P
x
, P
y
, P
z
)
Recoil Polarization
(P
x
, P
y
, P
z
)
Sum Rules
(I
GDH
,
g
0
, I
BC
, I
1
, I
2
, ...)
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