COMGEANT Additions at JLAB

Last updated: Wed, Mar 10, 1999 E.Chudakov gen@jlab.org

A set of additional routines are provided. These routines have not yet been included in the main source code.

The new features are added:

A possibility to add several simple dipole and quadrupole magnets is added. Ideal fields are assumed, no field maps are provided.
- FFREAD commands
- Interactive commands
One may simulate the radiative energy loss of the beam electron in the target before the interaction. This is done by a simple 1/E formula, no angular smearing of the beam particle is considered at the moment.
One can also now change the beam energy interactively.
- FFREAD commands
- Interactive commands
Moller and Mott electron scattering can be simulated in a given kinematic range. Also, pion, kaon or proton/antiproton photoproduction by the bremstralung photons in the target can be simulated using the code and spectra from Bosted and Wiser.
- FFREAD commands
- Interactive commands
LEPTO calling is revived. The leptod.F block data has to be properly linked and the rotation of the particle momenta is fixed to work with the beam along Z. A protection against infinite loops in the routine lqev is added.
User's routines to add data to the NTUPLE are added. They are called: ountfil.F, ountres.F, ountini.F.

The main code is stored in:

haplix2.jlab.org:/home/gen/cvs/comgeant/ - the source
jlabs1.jlab.org:/home/gen/cvs/comgeant/ - a copy, residing on the JLAB machines.

The libraries:

haplix2.jlab.org:/home/gen/cvs/comgeant/code/Linux
jlabs1.jlab.org:/home/gen/cvs/comgeant/code/ - Linux/ for Linux (RH 5.0, egcs g77), HP-UX/ for HP.

The new code:

The data for the JLAB projects:

The expamle of directories to run the code: