TABLE OF CONTENTS
- 1. /gamma2pi_Amplitudes
- 1.1. gamma2pi_Amplitudes/inMedium_delta_width
- 1.2. gamma2pi_Amplitudes/inMedium_delta_potential
- 1.3. gamma2pi_Amplitudes/inMedium_nucleon_potential
- 1.4. gamma2pi_Amplitudes/inMedium_pion_potential
- 1.5. gamma2pi_Amplitudes/buuPotential
- 1.6. gamma2pi_Amplitudes/debugFlag
- 1.7. gamma2pi_Amplitudes/init
- 1.8. gamma2pi_Amplitudes/Amplitudes_2pi
- 1.9. gamma2pi_Amplitudes/ampli
/gamma2pi_Amplitudes [ Modules ]
NAME
module gamma2pi_Amplitudes
PURPOSE
Calculates 2pi photoproduction amplitudes.
gamma2pi_Amplitudes/inMedium_delta_width [ Global module-variables ]
[ Top ] [ gamma2pi_Amplitudes ] [ Global module-variables ]
SOURCE
logical, save :: inMedium_delta_width=.false.
PURPOSE
turn on/off the in-medium-width of the delta
gamma2pi_Amplitudes/inMedium_delta_potential [ Global module-variables ]
[ Top ] [ gamma2pi_Amplitudes ] [ Global module-variables ]
SOURCE
logical, save :: inMedium_delta_potential=.false.
PURPOSE
turn on/off the in-medium-potential of the delta
gamma2pi_Amplitudes/inMedium_nucleon_potential [ Global module-variables ]
[ Top ] [ gamma2pi_Amplitudes ] [ Global module-variables ]
SOURCE
logical, save :: inMedium_nucleon_potential=.false.
PURPOSE
turn on/off the in-medium-potential of the nucleon
gamma2pi_Amplitudes/inMedium_pion_potential [ Global module-variables ]
[ Top ] [ gamma2pi_Amplitudes ] [ Global module-variables ]
SOURCE
logical, save :: inMedium_pion_potential=.false.
PURPOSE
turn on/off the in-medium-potential of the pion
gamma2pi_Amplitudes/buuPotential [ Global module-variables ]
[ Top ] [ gamma2pi_Amplitudes ] [ Global module-variables ]
SOURCE
logical, save :: buuPotential=.true.
PURPOSE
use buu potentials, else constants
gamma2pi_Amplitudes/debugFlag [ Global module-variables ]
[ Top ] [ gamma2pi_Amplitudes ] [ Global module-variables ]
SOURCE
logical, parameter :: debugFlag=.false.
PURPOSE
Switch for debug information
gamma2pi_Amplitudes/init [ Subroutines ]
[ Top ] [ gamma2pi_Amplitudes ] [ Subroutines ]
NAME
subroutine init
PURPOSE
Read out job card to initialize module parameters.
gamma2pi_Amplitudes/Amplitudes_2pi [ Namelists ]
[ Top ] [ gamma2pi_Amplitudes ] [ Namelists ]
NAME
NAMELIST /Amplitudes_2pi/
PURPOSE
Includes the switches:
- inMedium_delta_width
- inMedium_delta_potential
- inMedium_nucleon_potential
- inMedium_pion_potential
- buuPotential
gamma2pi_Amplitudes/ampli [ Functions ]
[ Top ] [ gamma2pi_Amplitudes ] [ Functions ]
NAME
function ampli(r,q,p1,p2,p4,p5,o,betaToLRF,mediumAtPosition) result(t)
PURPOSE
Calculates the 2pi photoproduction amplitude taken from Nacher et. al. NPA 695 (2001) 295. t is given in the CM frame, only transverse components are calculated.
AUTHOR
L. Alvarez-Ruso