NDVCS with TDIS

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Back to TDIS Run Group

Link to proposal

Latest nDVCS proposal

TO-DO Items

  • Determine the possible NPS angles from the TDIS setup (with the help of Steve Lassiter, Paulo Medeiros?);
  • Determine the settings at 11 GeV, 8.8 GeV, and evaluate the nDVCS rates;
  • Determine the triple-coincidence SBS-NPS-mTPC Signal-to-Background ratio:
    • pi0 rates in NPS with SIMC (Estimations with Wiser gave ~5MHz over the full calorimeter);
    • DIS rates (6 kHz from previous studies):
    • proton rates in NPS: max ~550 p, d per event

Software How-tos

This section provides guidance on how to use the different software packages for nDVCS.


G4SBS

G4SBS is useful to evaluate many of the backgrounds, namely beam-induced backgrounds. The documentation of G4SBS is available at the following link: Documentation of G4SBS For nDVCS, one should use the tdis_dev branch: git checkout tdis_dev

DVCS event generator

SIMC with Bosted pi0 generator

SIMC, combined with Bosted pi0 generator, can be used to evaluate the pi0 induced NPS backgrounds.