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RD - Adding custom BDTs and updating working points for b->sll MVA lines

Angel Campoverde requested to merge llx_mva_new_bdt into rd-devel

Dependencies

This MR depends on:

lhcb-datapkg/ParamFiles!92 (merged)

which is the one containing the BDT XML files

Purpose

This MR will:

  1. Train a BDT per process using Run3 simulation and real Run3 data.
  2. Update the working points such that the misid and same sign lines will be prescaled when needed, while lines targeting signal will have their BDT WP uptimized.

The rates are:

total passed rate
Hlt2RD_B0ToKpPimEE_MVA 125000 2 14.2773
Hlt2RD_B0ToKpPimEE_MVA_cal 125000 3 21.416
Hlt2RD_B0ToKpPimEE_MVA_misid 125000 3 21.416
Hlt2RD_B0ToKpPimEE_SameSign_MVA 125000 4 28.5546
Hlt2RD_B0ToKpPimMuMu_MVA 125000 4 28.5546
Hlt2RD_B0ToKpPimMuMu_SameSign_MVA 125000 2 14.2773
Hlt2RD_BsToPhiEE_MVA 125000 5 35.6933
Hlt2RD_BsToPhiEE_MVA_misid 125000 3 21.416
Hlt2RD_BsToPhiEE_SameSign_MVA 125000 0 0
Hlt2RD_BsToPhiMuMu_MVA 125000 0 0
Hlt2RD_BsToPhiMuMu_SameSign_MVA 125000 0 0
Hlt2RD_BuToKpEE_MVA 125000 6 42.8319
Hlt2RD_BuToKpEE_MVA_cal 125000 6 42.8319
Hlt2RD_BuToKpEE_MVA_misid 125000 2 14.2773
Hlt2RD_BuToKpEE_SameSign_MVA 125000 3 21.416
Hlt2RD_BuToKpMuMu_MVA 125000 1 7.13866
Hlt2RD_BuToKpMuMu_SameSign_MVA 125000 2 14.2773
Hlt2RD_LbTopKEE_MVA 125000 1 7.13866
Hlt2RD_LbTopKEE_MVA_misid 125000 1 7.13866
Hlt2RD_LbTopKEE_SameSign_MVA 125000 1 7.13866
Hlt2RD_LbTopKMuMu_MVA 125000 2 14.2773
Hlt2RD_LbTopKMuMu_SameSign_MVA 125000 0 0

Cut-based lines targeting similar decays have the following rates:

total passed rate
Hlt2RD_B0ToKpPimEE 125000 5 35.6933
Hlt2RD_B0ToKpPimEE_SameSign 125000 7 49.9706
Hlt2RD_B0ToKpPimMuMu 125000 3 21.416
Hlt2RD_B0ToKpPimMuMu_SameSign 125000 0 0
Hlt2RD_BsToPhiJpsi_PhiToKK_JpsiToEE 125000 0 0
Hlt2RD_BsToPhiJpsi_PhiToKK_JpsiToMuMu 125000 0 0
Hlt2RD_BuToKpEE 125000 12 85.6639
Hlt2RD_BuToKpEE_SameSign 125000 8 57.1092
Hlt2RD_LambdabToPKEE 125000 2 14.2773
Hlt2RD_LambdabToPKEE_SS 125000 2 14.2773
Hlt2RD_LambdabToPKMuMu 125000 1 7.13866
Hlt2RD_LambdabToPKMuMu_SS 125000 0 0

measured using real data and the scripts provided here

The performance plots are:

!bukee bdkstee
B^+\to K^+e^+e^- B_d\to K^{*0}e^+e^-
lbpkee bsphiee
\Lambda_b\to p K^-e^+e^- B_s\to \phi(1020)e^+e^-

Importance

These lines target decays of high interest to LHCb and the current performance is significantly better than the one in the first MR.

Edited by Angel Campoverde

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