New tuning for the topological beauty trigger
This merge request is updating the selection requirements of the topological trigger to reduce the output rate.
| Before | After | |
|---|---|---|
| Inclusive rate of 2/3-body | 157.0 +/- 11.504 kHz | 11.62 +/- 0.3681 kHz |
| 2body only | n.A. | 6.53 +/- 0.2767 kHz |
| 3body only | n.A. | 9.29 +/- 0.3295 kHz |
When calculating the rate, the overlap between the twobody and threebody topo lines are not included. That means, if one event gets selected by both, the twobody and threebody line, it only gets considered once in the rate calculation, which has been performed by the HLTEfficiencyChecker.
Therefore: This MR serves to solve the issue of the high output rate. There will be another updated version of the Topo soon since the variables/monotonic variables need to be reinvestigated.
Attached are performance plots of the transverse momentum spectrum of the twobody and threebody selection corresponding to this merge request.
Different from the current implementation, we have also updated the features, retuned the Lipschitz constant and re-evaluated the monotonic variables. Additionally, the training is performed on HLT1-filtered samples.
The single-muon topological trigger will be evaluated separately with its own MR.
To Do:
-
Evaluate the rates and determine MVA Cuts -
Revisit combination cuts for the TwoBody Combiner to decrease combinatorics and increase the throughput again
Corresponding Merge Requests: Paramfiles: lhcb-datapkg/ParamFiles!56 (merged)
CC: @bldelane @nnolte @gciezare @mvesteri @poluekt
merge_ThreeBody_PT_overall.pdf