ep_ekhyp_regge

Choose the reaction you want to calculate :
1 = (e, e' K+ Lambda)
2 = (e, e' K+ Sigma0)
3 = (e, e' K0 Sigma+)
1

Give choice for FORWARD scattering mechanism
1 = t-channel kaon (no form factor)
2 = kstar
3 = kaon gaugeinvariant
4 = kaon gaugeinvariant + kstar
4

Give choice for degeneracy of KAON trajectory
1 = non-degenerate trajectory
2 = degenerate trajectory with rotating phase (default)
3 = degenerate trajectory with NON-rotating phase
4 = single pole
2

Give choice for degeneracy of KSTAR trajectory
1 = non-degenerate trajectory
2 = degenerate trajectory with rotating phase (default)
3 = degenerate trajectory with NON-rotating phase
4 = single pole
2

Give choice for electromagnetic form factor of K
1 = Monopole parametrization
2 = Monopole at large Q_sqr, correct charge radius at low Q_sqr
3 = VMD form (rho, omega, phi poles)
4 = FF with off-shell extrapolation
1

Give choice for electromagnetic form factor of K*
1 = Monopole parametrization
2 = Monopole at large Q_sqr, correct charge radius at low Q_sqr
3 = VMD form (rho, omega, phi poles)
1

K form factor mass scale/cut-off
1.5

K* form factor mass scale/cut-off
1.5

Give choice for OBSERVABLE to calculate
1 = photo- and electro-production : RESPONSE functions
2 = theta dependence (Cornell experiments : Bebek et al.)
3 = q2 dependence
4 = recoil polarization
5 = double polarization (method 1 ; response function formalism)
6 = double polarization (method 2 ; full matrix element calculated for checking)
7 = cross section (T,L, TT,LT) : user-defined kinematics
7

1 : Q2 dependence
2 : t dependence
3 : W dependence
4 : cthkcm dependence
4

Which Q2
1.5

Which W
2.0

OUTPUT : cthkcm, sigu, siglt, sigtt, sigltp (nb/sr)

File: ep_klambda_a_kkstar_regge.dat