Using the previously defined units we can define the parameter that we need for the reactions as follow.

  <parameter id="k" units="ps" value="100.0"/>
  <parameter id="ka" units="pMps" value="1e8"/>
  <parameter id="kd" units="ps" value="0.01"/>
  <parameter id="mu" units="ps" value="0.5"/>
  <parameter id="mu2" units="ps" value="0.005"/>

The unit of k must be "per second", because the annihilation reaction will be defined as a first-order reaction in the concentration of species A.