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IsolationSelection - Fix thinning in PHYS from IsoCorrection

Johannes Junggeburth requested to merge jojungge/athena:IsoSize_Fix into master

Hi everybody,

this MR fixes the large track occupancy in the DAOD_PHYS formats due to !56303 (merged). The issue was a misunderstanding of the thinning logic from my side by taking it as an or instead of an And.

The patch is quickly validated on 150 Sherpa ZZ->4l events. The results are posted below

Master today

   13092.771 kb     6795.762 kb       45.305 kb        1.927      150  InDetTrackParticles (DataVector<xAOD::TrackParticle_v1>) [InDet]

With And fix:

   406.007 kb      200.911 kb        1.339 kb        2.021      150  InDetTrackParticles (DataVector<xAOD::TrackParticle_v1>) [InDet]

Disabling all H->ZZ features as it's done in !57951 (closed)

     405.195 kb      200.465 kb        1.336 kb        2.021      150  InDetTrackParticles (DataVector<xAOD::TrackParticle_v1>) [InDet]

Tagging: @sabidi, @goblirsc, @jcatmore, @christos

Edited by Johannes Junggeburth

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