Hello,

This MR is changing the seed jet pt cut from 10 GeV to 0 GeV in the tau reconstruction.
It does not change the reconstruction output, because this cut is set upstream to 15 GeV in the jet reconstruction: https://gitlab.cern.ch/atlas/athena/-/blob/master/Reconstruction/Jet/JetRec/share/JetRec_jobOptions.py#L33.
However, for the R22 reprocessing, we will have to drop this 15 GeV cut from the AntiKt4LCTopo jet reconstruction (by setting jetFlags.useCalibJetThreshold to False), and instead apply a tau pt cut at the end of the tau reconstruction, in the tau thinning algorithm.

Cheers,
Bertrand