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/initElementary [ Modules ]

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NAME

module initElementary

PURPOSE

Implement the init routines for collisions of "elementary" (non-perturbative) particles.

elementary/impactParameter [ Global module-variables ]

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SOURCE

  real, save :: impactParameter = -1. ! [fm]

PURPOSE

  • >=0: this is the actual impact parameter
  • <0 : Impact parameter integration up to an automatically determined b_max. The actual impact parameter is randomly sampled in the interval [0.,b_max] with a proper geometrical weight.

elementary/particleId [ Global module-variables ]

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SOURCE

  integer,dimension(2), save :: particleId=(/1,1/)

PURPOSE

Id of particles

elementary/particleAnti [ Global module-variables ]

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SOURCE

  logical,dimension(2), save :: particleAnti=(/.false.,.false./)

PURPOSE

if .true. then particles are antiparticles

elementary/particleCharge [ Global module-variables ]

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SOURCE

  integer,dimension(2), save :: particleCharge=(/0,0/)

PURPOSE

Charge of the particles

elementary/particleMass [ Global module-variables ]

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SOURCE

  real,   dimension(2), save :: particleMass=(/-1.0,-1.0/)

PURPOSE

Mass of particles (if <0, then mass is set to default values)

elementary/srtsRaiseFlag [ Global module-variables ]

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SOURCE

  logical, save :: srtsRaiseFlag=.false.

PURPOSE

  • if .true. then the srts stepping is done
  • if .false. then the ekin_lab stepping is done

elementary/ekin_lab [ Global module-variables ]

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SOURCE

  real, save :: ekin_lab=1. ! [GeV]

PURPOSE

kin. energy of first particle in the rest frame of second particle (starting value for the energy scan: the number of different energies is set by parameter num_Energies in the namelist "input")

elementary/delta_ekin_lab [ Global module-variables ]

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SOURCE

  real, save :: delta_ekin_lab=0.03 ! [GeV]

PURPOSE

kin. energy step for energy scan

elementary/srts [ Global module-variables ]

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SOURCE

  real, save :: srts=3. ! [GeV]

PURPOSE

invariant energy (starting value for the energy scan)

elementary/delta_srts [ Global module-variables ]

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SOURCE

  real, save :: delta_srts=1. ! [GeV]

PURPOSE

srts step for srts scan

elementary/debug [ Global module-variables ]

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SOURCE

  logical, parameter :: debug=.false.

PURPOSE

if .true., additional printouts are done for debugging

initElementary/initElementaryCollision [ Subroutines ]

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NAME

subroutine initElementaryCollision(teilchen,energyRaiseFlag)

PURPOSE

Provides initial conditions for the collision of two elementary particles.

INPUTS

  • type(particle),dimension(:,:),intent(inout) :: teilchen -- array of particles to store the two colliding elementary particles.
  • logical, intent(in) :: energyRaiseFlag -- if .true., then the lab. energy of the first particle is increased by delta_ekin_lab.

NOTES

The user has to provide the namelist 'elementary', which contains the impact parameter and lab. energy of the projectile and id's of colliding particles. If the input impact parameter is negative, then the actual impact parameter is chosen by Monte-Carlo between 0 and abs(input impact parameter).

initElementaryCollision/initInput [ Subroutines ]

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NAME

subroutine initInput

PURPOSE

Reads input out of jobcard. Namelist 'elementary'.

initElementary/elementary [ Namelists ]

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NAME

NAMELIST /elementary/

PURPOSE

Includes parameters for initialization of a collision between two elementary particles:

initElementaryCollision/setKinematics [ Subroutines ]

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NAME

subroutine setKinematics

PURPOSE

Sets basic kinematics of the elmentary particle collision.

initElementaryCollision/setPosition [ Subroutines ]

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NAME

subroutine setPosition

PURPOSE

Sets positions of the elementary particles.

NOTES