n-Pomeron vertex as in single 
diffraction, twice, to describe <i>x_Pomeron</i> and <i>t</i> spectra. 
This fixes the energy dependence, which has been integrated and 
parametrized. The absolute normalization has been left open, however.
Furthermore, since CD has not been included in previous tunes to data,
a special flag is available to reproduce the old behaviour (with due
complications when one does not want to do this).

<p/><code>parm&nbsp; </code><strong> SigmaTotal:sigmaAXB2TeV &nbsp;</strong> 
 (<co