The scattering calculation is controlled by GENERAL (system independent) and SYSTEM parameters (those which are specific to a particular collision system).

More information on the collision systems which can be treated is given here.

The system independent parameters are:

• ENERG
• FSTFAC
• INDOUT
• IPRINT
• J1J2
• JOUT
• JTOT1
• JTOT2
• JTOTD
• JLPAR
• LSCREEN
• NERG
• NUMAX
• NUMIN
• NUD
• RCUT
• RENDAI
• RENDLD
• RINCR
• RSTART
• SPAC
• TOLAI
• XMU

To change values of any parameters enter the command

PARAMETER1=VAL1,PARAMETER2=VAL2 etc.

Different parameters can be separated by commas or by semicolons.

Note that values for the parameters ENERG, INDOUT, or JOUT must be terminated by a backslash () if other PARAMETER=VAL strings follow, e.g.

ENERG=1000,2000\AIRYFL=T

The Hibridon input parser is not case sensitive, so parameters can be entered in either upper or lower case.

Parameters may be abbreviated, although you will be asked to re-enter the parameter if there is an ambiguity.

The default parameters are those for the collision of N2 with Ar, which is used as a test case.