>p_x</i> spread of the
first incoming particle.
  

<p/><code>parm&nbsp; </code><strong> Beams:sigmaPyA &nbsp;</strong> 
 (<code>default = <strong>0.</strong></code>; <code>minimum = 0.</code>)<br/>
The width of a Gaussian distribution of the <i>p_y</i> spread of the
first incoming particle.
  

<p/><code>parm&nbsp; </code><strong> Beams:sigmaPzA &nbsp;</strong> 
 (<code>default = <strong>0.</strong></code>; <code>minimum = 0.</code>)<br/>
The width of a Gaussian distribution of the <i>p_z</i> spread of the