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Fix for bug in one of the PIDe lines and added extra cuts

Pol Vidrier Villalba requested to merge pvidrier_PIDe into 2024-patches

One of the PIDe lines, Hlt2PID_BToJpsiK_JpsiToEmbremEpbremTagged, used a wrong function and that was producing fewer events from it. With this bug resolved, now works as expected.

Additionally, we added two extra cuts (B_BPVIPCHI2<30 and B_BPVDIRA>0.8) to make the selection a bit better and be able to see a peak out of the box. This extra selection, tested using 2023 data and mc, has the following efficiency tested in the line without the bug, Hlt2PID_BToJpsiK_JpsiToEpbremEmbremTagged, and the equivalent one without PIDe cut on the tag:

  • PIDe on tag:
    • MC efficiency of 98.64%
    • BKG rejection of 86.33%
  • noPIDe on tag:
    • MC efficiency of 99.46%
    • BKG rejection of 34.56%

FYI @cmarinbe @lcalefic

Edited by Pol Vidrier Villalba

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