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/master_3Body [ Modules ]

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NAME

module master_3Body

PURPOSE

Includes all 3->X processes.

master_3Body/NNpion_NN_maxSrts [ Global module-variables ]

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PURPOSE

Maximal sqrt(s) in GeV such that a NN Pion -> NN event takes place.

SOURCE

  real, save :: NNpion_NN_maxSrts = 4.0

master_3Body/positionNNpi [ Global module-variables ]

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PURPOSE

This switch determines where the final state particles in NNpi->NN are positioned:

  • true: pion position
  • false: center of NNPi (default)

SOURCE

  logical, save :: positionNNpi = .false.

master_3Body/radiusNukSearch [ Global module-variables ]

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PURPOSE

Radius for the search of nucleons, i.e. the radius in which nucleons shall be searched for at rho_0.

SOURCE

  real, save :: radiusNukSearch = 2.9

master_3Body/debug [ Global module-variables ]

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SOURCE

  logical, parameter :: debug=.false.

PURPOSE

Switch for debug information.

master_3Body/correctEnergy [ Global module-variables ]

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PURPOSE

Scale final state momenta to fulfill energy and momentum conservation. If .false., energy conservation is violated.

SOURCE

  logical, save :: correctEnergy = .true.

master_3Body/pionThreeBody [ Global module-variables ]

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PURPOSE

Switch for the NNpion -> NN processes (false=OFF).

SOURCE

  logical, save :: pionThreeBody = .true.

master_3Body/DeltaThreeBody [ Global module-variables ]

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PURPOSE

Switch for the NNDelta -> NNN processes (false=OFF).

SOURCE

  logical, save :: DeltaThreeBody = .true.

master_3Body/s_wave_abs [ Global module-variables ]

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PURPOSE

Use the s-state absorption of Nieves et al NPA 554 (1993) 554, Eq. (18) for NNpion -> NN

SOURCE

  logical, save :: s_wave_abs = .false.

NOTES

master_3Body/GetRadiusNukSearch [ Functions ]

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NAME

real function GetRadiusNukSearch()

PURPOSE

return the value of the variable "radiusNukSearch"

master_3Body/readInput [ Subroutines ]

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NAME

subroutine readInput

PURPOSE

Reads input in jobcard out of namelist "master_3body".

master_3Body/master_3body [ Namelists ]

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NAME

NAMELIST /master_3body/

PURPOSE

Includes the switches:

master_3Body/make_3Body_Collision [ Subroutines ]

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NAME

subroutine make_3Body_Collision(PartIn, proton1,proton2,neutron1,neutron2,scatterPartner1,scatterPartner2, finalState,flagOK)

PURPOSE

perform a 3-Body collision

INPUTS

  • type(particle) :: PartIn -- ...
  • type(particle), pointer :: proton1, proton2, neutron1, neutron2 -- ...

OUTPUT

  • type(particle), pointer :: scatterPartner1,scatterPartner2 -- ...
  • type(particle), dimension(:) :: finalState -- ...
  • logical :: flagOK -- ...

master_3Body/pionAbsorption [ Subroutines ]

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NAME

subroutine pionAbsorption(partIn,proton1,proton2,neutron1,neutron2, & scatterPartner1,scatterPartner2,preEvOut,flagOK)

PURPOSE

perform a pi N N -> N N collision

INPUTS

  • type(particle) :: PartIn -- ...
  • type(particle), pointer :: proton1, proton2, neutron1, neutron2 -- ...

OUTPUT

  • type(particle), pointer :: scatterPartner1,scatterPartner2 -- ...
  • type(preEv), dimension(:) :: preEvOut -- ...
  • logical :: flagOK -- ...

master_3Body/deltaAbsorption [ Subroutines ]

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NAME

subroutine deltaAbsorption(partIn,proton1,proton2,neutron1,neutron2, & scatterPartner1,scatterPartner2,preEvOut,flagOK)

PURPOSE

perform a Delta N N -> N N N collision

INPUTS

  • type(particle) :: PartIn -- ...
  • type(particle), pointer :: proton1, proton2, neutron1, neutron2 -- ...

OUTPUT

  • type(particle), pointer :: scatterPartner1,scatterPartner2 -- ...
  • type(preEv), dimension(:) :: preEvOut -- ...
  • logical :: flagOK -- ...

master_3Body/setFinalState [ Subroutines ]

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NAME

subroutine setFinalState(part1,part2,part3,preFinalState,finalState,flagOK)

PURPOSE

...

INPUTS

...

OUTPUT

...

master_3Body/setKinematics [ Subroutines ]

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NAME

subroutine setKinematics(srts,srts_vac,mom_calc, betaToLRF,betaToCM,medium_AtCollision, finalState)

PURPOSE

Evaluates the kinematics for the "finalState" particles assuming vacuum kinematics (-> no potentials).

INPUTS

  • real :: srts -- sqrt(s)
  • real :: srts_vac -- sqrt(s) in the vacuum
  • real, dimension(0:3) :: mom_calc -- total momentum in calculation frame
  • real, dimension(1:3) :: betaToLRF -- beta of calc frame to LRF frame
  • real, dimension(1:3) :: betaToCM -- beta of cal frame to CM frame
  • type(medium) :: mediumAtCollision -- medium information

OUTPUT

  • type(particle), dimension(:) :: finalState -- ...
  • logical :: collisionFlag -- "true" if kinematics could be set, "false" if not

NOTES

It's important that the Id's and charges of the "finalState" particles are already set when calling this subroutine. Only kinematics including masses of this finalState will be set.

master_3Body/nukSearch [ Subroutines ]

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PURPOSE

Searches in particle Vector for those nucleons which are closest to the given particleIn. It returns pointers to the closest neutrons and protons.