 I \rangle
                     / (\sqrt {2I+1}  \langle IK k0 | I ' K \rangle ) \ .
\end{eqnarray}
 -->
<TABLE CLASS="equation" WIDTH="100%">
<TR VALIGN="MIDDLE"><TD NOWRAP ALIGN="RIGHT"><IMG
 STYLE=""
 SRC="img112.svg"
 ALT="$\displaystyle Mn(Ek) = \langle I ' \vert\vert Ek \vert\vert I \rangle
/ (\sqrt {2I+1} \langle IK k0 \vert I ' K \rangle ) \ .$"></TD>
<TD>&nbsp;</TD>
<TD>&nbsp;</TD>
<TD CLASS="eqno" WIDTH=10 ALIGN="RIGHT">
(<SPAN CLASS="arabic">2</SPAN>)</TD></TR>
</TABLE></DIV>
Thus, for (possibly 