TABLE OF CONTENTS
/FF_Delta_production [ Modules ]
NAME
module FF_Delta_production
PURPOSE
Provides the electro-weak form factors for the process lepton nucleon -> lepton' Delta.
FF_Delta_production/FF_Delta [ Global module-variables ]
[ Top ] [ FF_Delta_production ] [ Global module-variables ]
SOURCE
integer, save :: FF_Delta=1 ! 0: FF taken from MAID ! (see notes of Luis Alvarez-Ruso) ! 1: FF taken from Paschos ! (hep-ph/0501109 v2)
PURPOSE
This switch decides whether the Paschos form factors (FF_Delta=1) or the Maid form factors (FF_Delta=0) are used. Default is FF_Delta=1.
FF_Delta_production/input_FF_Delta [ Namelists ]
[ Top ] [ FF_Delta_production ] [ Namelists ]
NAME
NAMELIST /input_FF_Delta
PURPOSE
Includes the input switch:
FF_Delta_production/readInputDeltaFormFactors [ Subroutines ]
[ Top ] [ FF_Delta_production ] [ Subroutines ]
NAME
subroutine readInputDeltaFormFactors
PURPOSE
decide, which set of form factors is used by reading in FF_Delta.
FF_Delta_production/formfactors_Delta [ Subroutines ]
[ Top ] [ FF_Delta_production ] [ Subroutines ]
NAME
subroutine formfactors_Delta(Qs,W,processID,c3v,c4v,c5v,c6v,c3a,c4a,c5a,c6a)
PURPOSE
- Provides the electro-weak form factors for the process lepton nucleon -> lepton' Delta.
INPUTS
- real, intent(in) :: Qs ! =Q^2 : virtuality of gauge boson in units of GeV**2 = (-1)*Mandelstam-t
- real, intent(in) :: W ! invariant mass
- integer, intent(in) :: processID
"processID" specifies the reaction type: EM, CC, NC
OUTPUT
- real, intent(out) ::c3v,c4v,c5v,c6v ! Vector Form factors
- real, intent(out),optional :: c3a,c4a,c5a,c6a ! Axial Form factors (not necessary as input if processID=EM)