simc_gfortran - Hall C/A Physics Monte Carlo

SIMC (simc_gfortran) is the standard Hall C Monte Carlo for coincidence reactions, written in FORTRAN.

Features

SIMC simulates the optics (using COSY models) and apertures of the Hall C spectrometers (HMS, SOS, SHMS) and other spectrometers at Jefferson Lab (HRS's, BigCal, ...)
Radiative effects, multiple scattering, ionization energy loss and particle decay are included
Simple presecriptions are available for Final State Interactions, Coulomb Corrections and other effects.

Reactions

SIMC has physics models for the following reactions.

Elastic and quasi-elastic scatering: H(e,e'p), A(e,e'p)
Exclusive pion production: H(e,e'pi+)n, A(e,e'pi+/-) (quasifree or coherent)
Kaon electroproduction: H(e,e'K+)Lambda,Sigma, A(e,e'K+/-),A(e,e'K-)
Semi-inclusive pion production: H(e,e'pi+/-)X, D(e,e'pi+/-)X
Semi-inclusive kaon production: H(e,e'K+/-)X, D(e,e'K+/-)X
Diffractive rho production: H(e,e'rho->pi+ pi-)p, D(e,e'rho->pi+ pi-)

SIMC is NOT

Not a full detector response simulation a la GEANT/GEANT4
Does NOT simulate a large class of processes simultaneously to gerate backgrounds (like Pythia for example)
Not a generic event generator. Processes are generated over a limited phase space matching the spectrometer acceptances
Not hard to modify

Overview

An overview of SIMC can be found in this presentation at the 2009 Hall A Collaboration Meeting

Documentation

For more information, see the SIMC Monte Carlo page in the Hall C Wiki