SpinQuest Monte Carlo Generation on Rivanna

Here are the updated instruction of generating Monte Carlo for SpinQuest simulations and analysis

1. Login to Rivanna (https://ood.hpc.virginia.edu/pun/sys/dashboard)
2. Create a folder to submit your jobs from on /project/ptgroup/ or /project/UVA-Spin
3. The scripts to generate Monte Carlo (MC) events on Rivanna are in: 

   /project/ptgroup/work/MC_Generation

   You can make more and store the generating scripts here but label then in a way that is easy to understand.  The present naming convention is <Exp>_<channel>_<vertex origin>
   1. Option for <Exp> are 906 or 1039.  The Geant4 geometry is different for the setup of E906 and E1039, so for SpinQuest make sure you are using the E1039 geometry.
   2. Option for <channel> are : Drell-Yan (DY), Jpsi (JPsi), Psi' (Psip) Pion background (Pion), Kaon background (Kaon), Random-multi muons (MultiMuon), Single Muons + or- (SingMup/m)
   3. Option for <Vertex origin> : target (Target), Beam Dump (Dump), Everything that seen by the beam (All), The gap between the target and dump (TargetDumpGap), and arbitrary vertex origin (Manual, should specify numbers such as x,y,z→25,25,100 would be a target size with diameter 25cm and 100cm long.)