Parameters NUMIN and NUMAX


For Coupled States calculations the parameters NUMIN and NUMAX designate the minimum and maximum value of the projection index nu. For collisions involving molecules with half-integer spin, the minimum and maximum value of nu is equal to NUMIN+1/2 and NUMAX+1/2. If you are interested in cross sections out of or into a level with rotational quantum number j, you must set NUMAX at least equal to j.

NUMIN should be a positive number (or zero), since the CS S matrices for negative nu can be related to those for positive nu by symmetry and thus need not be computed. If you set NUMIN=0, then you will compute correctly cross sections for all j->j' transitions with j and j' less than or equal to NUMAX.

For Close Coupled calculations the parameters NUMIN and NUMAX can be given any values, but are then set internally to 0.


Click here for more information on reading in, changing, or saving the values of any parameter.
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