Skip to content

fix for a bug in the efex em isolation variables - ATR-24204

Alison Elliot requested to merge afaulkne/athena:master-update-efex-FixIsoWP into master

This is a change to fix a bug in the eFEX EM isolation variables, causing it to give counts that are too low with L/M/T applied, as observed in ATR-24204.

There is a large-scale validation underway, with further bug fixes expected for the eFEX. However, as this is the most major, and a blocker for egamma studies, it is being merged while the rest are being investigated and closely examined.

Additionally, when the TOB et value is > 60 GeV, all isolation criteria are set to passing tight.

Tagging @dzanzi , @amendesj , @tqiu , @hillier

Please note, this changes the counts, but I've had a lot of difficulty not picking up other MRs today. I think there might be an issue here, but I am interested to see what the CI tests say.

Merge request reports