Delphes

• General information on DELPHES
  • https://cp3.irmp.ucl.ac.be/projects/delphes
  • after installation ./DelphesHepMC2 card/something.tcl output/something.root input/somethingHepMC2.txt
• Converting PYTHIA lund format output files to HepMC2 format
  • Contact: Dmitry Romanov (JLab)
  • https://eicweb.phy.anl.gov/monte_carlo/mcconv
• DELPHES control cards for CORE
  • 2.5 T central field: Delphes_EIC_CORE_2.5T_Grassi.tcl
  • 3.0 Tesla: Delphes_EIC_CORE_3T.tcl
• HepMC
  • HepMC Homepage
  • HepMC3 git repository (includes required HepMC2)
• Sample HepMC2 input file of 100K DVCS events (proton, uniform, no cross section) on JLab ifarm
  • sftp://ftp.jlab.org/work/eic/hyde/dvcs/Coherent_HepMC2_1H.txt
  • Sample code for embedding HepMC output into a generator [ https://github.com/cehyde/CORE_HepMC | https://github.com/cehyde/CORE_HepMC].
• Sample dvcs output root file from Delphes
  • sftp://ftp.jlab.org/work/eic/hyde/dvcs/DVCS_test.root
• Sample script for analyzing Delphes output root file for DVCS
  • sftp://ftp.jlab.org/work/eic/hyde/dvcs/dvcs_analyzer_v2.cpp
• Sample output from analyzer script
  • sftp://ftp.jlab.org/work/eic/hyde/dvcs/DVCS_test.png
  • view directly here: DVCS_test.png
• DIS hepmc files available (including 35 mrad crossing angle & crabbing) [sftp.sdcc.bnl.gov:]
  • /gpfs/mnt/gpfs02/eic/bpage/home/eicBeamSimu/Pythia8/headonTestJin/testcross*.hepmc
  • Details of successful DIS run in Delphes:
    • indico 26 Aug 2021 WG meeting
• A note on particle "status codes" in HepMC and Delphes
  • [1]
  • The Particle branch of the DELPHES output root file contains all generated particles
    • if(particle->Status==4)// Beam particle
    • ...Status==1 // undecayed particle
    • ...Status==2 // decayed physical particle (e.g. pi0, K_S, but not quark, gluon...)
  • use these codes to assess CORE reconstruction resolution