This window allows transitions of
particular values of total angular momentum and rovibronic (rotational
x vibrational x electronic) symmetry (for either or both
upper and lower states) to be selected. This is
especially useful for finding ground or excited state common
differences, where a set of transitions either start or end with the
same rotational level. To do this, select a particular
J
and possibly rovibronic symmetry or eigenvalue number for the upper or
lower
state, and set the values
for the other state to "all" (clear the box, or use the lowest value on
the spin boxes). Then
press the
button (if necessary) to simulate the selected transitions. To revert
to the
original simulation, press the
button in
the main window. Matrices of the transition moment operator are
also displayed in this window if the selection is restricted to a
single upper and lower state J and symmetry. If
External
Fields are present, the "J" is replaced by M and the symmetry is
ignored.
Windows 
