tion of projectile and target states,
but k<SPAN CLASS="MATH"><IMG
 STYLE=""
 SRC="img1.svg"
 ALT="$&gt;$"></SPAN>0 for projectile and k<SPAN CLASS="MATH"><IMG
 STYLE=""
 SRC="img14.svg"
 ALT="$&lt;$"></SPAN>0 for target states.
STR refers to the RDEF(k) measure above;
the factor  <!-- MATH
 $(-1)^{ [I-I'+|I-I'|]/2}$
 -->
<SPAN CLASS="MATH"><IMG
 STYLE=""
 SRC="img141.svg"
 ALT="$(-1)^{ [I-I'+\vert I-I'\vert]/2}$"></SPAN> must be included.

<P>
For TYPE=17, couplings, to all orders in RDEF, are calculated b