Enable negative-E thinning of neutral FlowElement collection

As discussed in !38816 (merged), we want to be removing negative energy FlowElements from the collection written to AOD. This is already done for the old-style PFOs and was simply overlooked earlier when FlowElements were added earlier. This configures the thinning tool do thin the FlowElement container in addition to the older PFO one. The result should be a somewhat decreased event size for the JetETMissNeutralFlowElements collection (it looked like a saving on the order of 10kb/evt on the handful of dijet events I used for local testing).

Tagging @mhodgkin and @amete for their awareness.

unmarked as a Work In Progress

changed the description

This merge request affects 1 package:

• PhysicsAnalysis/AnalysisCommon/ThinningUtils

This merge request affects 1 file:

• PhysicsAnalysis/AnalysisCommon/ThinningUtils/python/ThinNegativeEnergyNeutralPFOs.py

Adding @mhodgkin as watcher

added Analysis master review-pending-level-1 labels

CI Result SUCCESS (hash 3ded3b3d)

	Athena	AthSimulation	AthGeneration	AnalysisBase
externals
cmake
make
required tests
optional tests

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Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 24594]

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Pavol [as L2 MR shifter]

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit 7859d416

added sweep:ignore label