Minutes of the VMC meeting on 03 June 2009<br>
<ul>
    <li>Lia Lavezzi reported about a couple of bugs in GEANE that produces FPE crashes due to numerical roundings/instabilities for some  rare cases and some track parameterization. The proposed fix sets a flag in a newly defined common block so that the user code can take the appropriate action (like aborting the track)
    <ul>
        <li><font color="#ff0000">To do: Lia should send her fix (done against the SVN trunk) to Rene for commit</font></li>
    </ul>
    </li>
    <li>Mohammad reported that some old bugs in the G4ROOT interface re-appear in the new ROOT versions. These are the report of track vertex outside setup and assemblies that appear in simulation.
    <ul>
        <li><font color="#ff0000">To do: Mohammad should supply a simple test so that I can reproduce and fix this (high priority!)</font></li>
    </ul>
    </li>
    <li>Mohammad has a new development related to the rewrite of GEANE EUSTEP in C++.
    <ul>
        <li><font color="#ff0000">To do: Mohammad should report next time about the progress</font></li>
    </ul>
    </li>
    <li>There is a known difference in the production of Cerenkov photons between G3 and G4
    <ul>
        <li><font color="#ff0000">To do: Ivana should contact GEANT4 experts to discuss this issue</font></li>
    </ul>
    </li>
    <li><font color="#0000ff">The next meeting will be scheduled in September due to people availability</font></li>
</ul>