Hi Sheila, I had a look at your attempt to put the Andersen/Gardi (AG) code into the EvtGenModels package. I put all code of AG into one file which goes into EvtGenModels. For the EvtVubAG class a short header fiel is needed profiding and init function and the triple diff rate. I have summariesed the steps at http://www.slac.stanford.edu/BFROOT/www/Physics/Analysis/AWG/InclusiveSL/common/generator/AndersenGardi.html I took the EvtVubAG class from your test release but either I or you have changed something in the calculation of the event kinematics so that the program gives a core dump after one or two events. I have already tried to rewrite this in a nicer way and I will finish this (and hopefully fix it) tomorrow. Can you see if it compiles for you? We can talk tomorrow what kind of test we should do in order to see what the code does. Cheers, Wolfgang ----------------------------------------------------------------------------- Wolfgang Menges Queen Mary, University of London SLAC, MS 35 Mile End Road 2575 Sand Hill Road London, E1 4NS, UK Menlo Park, CA 94025, USA ++44 20 7882 3753 ++1 650 926 8503 [log in to unmask] -----------------------------------------------------------------------------