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TrigL1CaloUpgrade: eFEX egamma update

Alan Watson requested to merge watsona/athena:21.3-eFEX-egamma-update into 21.3

@bcarlson @viveiros

Updates to e/gamma algorithm (or any other based in TrigT1CaloBaseFex)

  • update seeding algorithm to match firmware
    • unlikely user will see any effect
  • update handling of regions with unusual supercell geometry (1.4-1.5, 1.8-2.0, 2.4-2.5)
    • some visible changes in all algorithm aspects around barrel-endcap transition
    • visible changes in L1Width in regions 1.8-2.0, 2.4-2.5
    • RetaL12 will also change for |eta|>2.3
  • update L1Width with integer weights and special handling of 1.8-2.0 region
    • large change in scale of variable
    • 1.8-2.0 no longer has narrower distribution than the norm (as does not use finer granularity than will be available in reality)
  • update RHad algorithm to match the clusters used in the firmware
    • modest changes in values

For reference, here is a summary: https://indico.cern.ch/event/939184/contributions/3946427/attachments/2073972/3482312/egamma_Simulation_Update.pdf

Edited by Ben Carlson

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