TABLE OF CONTENTS
- 1. /formfactors_A_main
- 1.1. formfactors_A_main/getA
- 1.1.1. getA/get_i
- 1.1.2. getA/get_neighbors
- 1.1.3. getA/init_datFile
/formfactors_A_main [ Modules ]
NAME
module formfactors_A_main
PURPOSE
This module administrates the formfactors for gamma* N -> N pi.
USES
- formfactors_A_pi0_neutron
- formfactors_A_pi0_protron
- formfactors_A_piPlus_neutron
- formfactors_A_piMinus_proton
INPUTS
None
formfactors_A_main/getA [ Functions ]
[ Top ] [ formfactors_A_main ] [ Functions ]
NAME
function getA(pionCharge_out,nucCharge_out,thetaIn,sIn,QSquaredIn)
PURPOSE
This function returns the invariant Amplitudes A_1, ... A_6 of the MAID analysis.
INPUTS
- real :: thetaIn ! Theta scattering angle of the pion relative to q in the CM system of the hadronic vertex
- real :: QSquaredIn ! Q^2=-q^mu q_mu of the gamma
- real :: sIn ! Mandelstam s of the hadronic vertex: gamma* N-> pi N
- integer :: pionCharge_out,nucCharge_out ! charges of outgoing pion and nucleon
OUTPUT
complex, dimension(1:6) :: getA ! The complex amplitudes A_1 to A_6 in units of: