t is that hadrons
may contain <i>u</i>, <i>d</i> and <i>s</i> quarks, 
but not <i>c</i> and <i>b</i> ones, since sensible
kinematics has not really been worked out for the latter.
  

<p/><code>mode&nbsp; </code><strong> BeamRemnants:companionPower &nbsp;</strong> 
 (<code>default = <strong>4</strong></code>; <code>minimum = 0</code>; <code>maximum = 4</code>)<br/>
When a sea quark has been found, a companion antisea quark ought to be
nearby in <i>x</i>. The shape of this distribution can be derived 
from t