Update to HION7 derivation to use lower pT threshold for tracks (ATLHI-537)
This MR has two changes w.r.t. to the HION7 derivation:
- track-pt cut reduced to 500 MeV
- Event-filtering changed to '(HLT_j100_ion_L1J20 && count(AntiKt4HIJets.pt >99.5*GeV) >=1 )'
The above is done using a new flag in the HION7 derivation file to select the alternate requirements.
The updates to HION7 was discussed in: ATLHI-537
Tagging @soumya for information.