for unpolarized target and without
recoil polarization
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) (click here
for a larger image)
On this page the complete 5-fold
differential cross section and in addition
the individual 2-fold cross sections dsT, dsL, dsLT, dsTT and SLT' will
be calculated using electron kinematics. For virtual photon kinematics
see our alternative
page.
Note: The longitudinal
cross sections (dsL, dsLT and dsLT') differ from those in Drechsel and
Tiator, J. Phys. G18 (1992) 449. Here we do not use the longitudinal polarization
epsilon_L!! Channel:
K+L
K0L
K+S0
K0S+
K+S-
K0S0
Model input
(on and off): Born K*
(893)K1(1270)
Resonances in KL:S11(1650)P11(1710) P13(1720) D13(1900)
(missing resonance)
Resonances in KS:S11(1650)P11(1710) P13(1720) S31(1900) P31(1910)
Change
values of Born couplings, relative to standard values: gKLN
= -13.47, gKSN
= 4.25 (no factors of 4p):
gKLN
gKSN
Change values of vector
meson couplings GV,T
= ggKK*
gV,TK*YN
(relative
to standard values):
K* (893)
K1(1270)
GV
GT
GV
GT
Change values of resonance couplings
G1,2,3=
g1,2,3gNN*
gKYN (relative to
standard values):
KL
and
KS
S11(1650)
P11(1710)
P13(1720)
G1
G3
G1
G3
G1
G2
G3
KL only
KS only
D13(1900)
S31(1900)
P31(1910)
G1
G2
G3
G1
G3
G1
G3
Choose kinematical variables for
polarization definition
Enter values for electron beam
energy Ei, scattered
electron energy Ef,
electron scattering angle Qelectron
and electron polarization helectron:
Ei
(MeV)
Ef
(MeV)
Qelectron(deg)
helectron
Choose
kinematical variables
choose an independent (running)
variable: QKFK
choose values for QK,
FK, step
size and maximum value:
