Skip to content

LHCBGAUSS-876: Fixed Incorrect Rich1 Plane2Plane

Kristian Alexander Zarebski requested to merge LHCBGAUSS-876.Rich1P2PFix into master

RICH1 Profile Fix

Due to the position of Scoring Plane 1 meaning a clash in Geant4 volumes the RadLength test must be run in two stages. It was recently discovered that the results for Rich1 Plane-to-Plane radiation length profiles were incorrect due to VELO components also being included. To fix this the test is now run in three stages:

  • Full geometry for producing cumulative radiation and interaction length profiles
  • VELO only for Plane-to-Plane profile for the VELO + PuVeto
  • No VELO and no PuVeto for all other Plane-to-Plane profiles

Updated Profiles

  • For better resolution of 2D scans, the method for firing the particle gun has been switched from random to being an eta-phi grid where the number of events is determined by nStepsEta*nStepsPhi.
  • Option for adding a cap to Z maximum of the interaction/radiation length profiles for Rich1 and Velo has been added to reduce saturation due to contribution from the beam pipe.

Other

  • TNamed added for each plot as a description to be picked up by LHCbPR.
Edited by Kristian Alexander Zarebski

Merge request reports

Loading