code>; <code>maximum = 2.</code>)<br/>
the main parameter of the electric form factor
<i>G(t) = lambda^2 / (lambda + |t|)^2</i>, in units of GeV^2.
  

<p/><code>parm&nbsp; </code><strong> SigmaElastic:tAbsMin &nbsp;</strong> 
 (<code>default = <strong>5e-5</strong></code>; <code>minimum = 1e-10</code>)<br/>
since the Coulomb contribution is infinite a lower limit on 
<i>|t|</i> must be set to regularize the divergence, 
in units of GeV^2.
  

<p/><code>parm&nbsp; </code><strong> SigmaElastic:phaseConst &nb