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/phiNucleon [ Modules ]

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NAME

module phiNucleon

PURPOSE

Includes the cross sections for phi-nucleon scattering in the resonance regime. Public routines:


phiNucleon/phiNuc [ Subroutines ]

[ Top ] [ phiNucleon ] [ Subroutines ]

NAME

subroutine phiNuc (srts,teilchenIN,mediumATcollision,teilchenOUT,sigmaTot,sigmaElast,useHiEnergy,HiEnergySchwelle,plotFlag)

PURPOSE

Evaluates phi Nucleon -> anything cross sections and returns also a "preevent"

INPUTS

  • real, intent(in) :: srts ! sqrt(s) in the process
  • type(particle),dimension(1:2), intent(in) :: teilchenIn ! colliding particles
  • type(medium), intent(in) :: mediumATcollision ! Medium informations at the position of the collision

High energy matching:

Debugging:

  • logical, intent(in),optional :: plotFlag ! Switch on plotting of the Xsections

OUTPUT

  • real, intent(out) :: sigmaTot ! total Xsection
  • real, intent(out) :: sigmaElast ! elastic Xsection

This routine does a Monte-Carlo-decision according to the partial cross sections to decide on a final state with maximal 3 final state particles. These are returned in the vector teilchenOut. The kinematics of these teilchen is only fixed in the case of a single produced resonance. Otherwise the kinematics still need to be established. The result is:

  • type(preEvent),dimension(1:3), intent(out) :: teilchenOut ! colliding particles

The cross sections are based upon a parametrization by Golubeva. See routine golub_phi in parametrizationBarMes.

NOTES

Possible final states are :


phiNuc/evaluateXsections [ Subroutines ]

[ Top ] [ phiNuc ] [ Subroutines ]

NAME

subroutine evaluateXsections

PURPOSE

Evaluates phi Nucleon -> anything cross sections

NOTES

There are no resonance contributions to phi N scattering. The contributions are given by Golubeva (see golub_phi).


phiNuc/makeOutput [ Subroutines ]

[ Top ] [ phiNuc ] [ Subroutines ]

NAME

subroutine makeOutput

PURPOSE

Writes all cross sections to file as function of srts and plab [GeV]. Filenames:

  • 'phiN_sigTotElast.dat' : sigmaTot, sigmaElast
  • 'phiN_nonStrange_nuk.dat' : non-strange meson with nucleon in final state