5.11. Multiple interactions¶
The following parameters are used to steer the MPI setup:
Specifies the MPI handler. The two possible values
at the moment are
The following two parameters can be used to overwrite the ISR parameters
in the context of multiple interactions:
Specifies the hadron profile function. The possible values are
For the double gaussian profile, the relative core size and relative
matter fraction can be set using PROFILE_PARAMETERS.
The potential parameters for hadron profile functions, see PROFILE_FUNCTION. For double gaussian profiles there are two parameters, corresponding to the relative core size and relative matter fraction.
Specifies the centre-of-mass energy at which the transverse momentum
integration cutoff is used as is, see SCALE_MIN.
This parameter should not be changed by the user. The default is
1800, corresponding to Tevatron Run I energies.
Specifies the factor to scale the non-diffractive cross section calculated in the MPI initialisation.
Specifies the name of the directory where the MPI grid is stored. The default comprises the beam particles, their energies and the PDF used. In its default value, this information safeguards against using unsuitable grids for the current calculation.