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Charm HLT2 lines: D2HH0 with H0->eegamma and H0->eeee

Tom Hadavizadeh requested to merge thadaviz_charm_d2hh0_lines into master

Overview

This merge request is for a collection of lines include neutral particles reconstructed as h0->e+e-gamma and h0->e+e-e+e-. This includes:

  • Signal lines: D(s)+ -> pi+ h0, D(s)+ -> K+ h0, L_c+ -> p h0,
  • Control lines: D0 -> K- pi+ h0
  • Double neutral signal lines: D0 -> h0 h0

Same-sign e+ e+ versions are included as well.

The dielectron pairs are taken from the container make_detached_dielectron_with_brem. To make e+e-gamma combinations these are combined with a photon using the ParticleAdder combiner.

Rate tests

The rates have been tested using the upgrade_minbias_hlt1_filtered sample.

HLT rates: 
----------------------------------------------------------------------------------------------------
Line:    Hlt2Charm_DpDspToEtaKp_EtaToEmEpG_LineDecision                          Incl: 0.13 +/- 0.09 kHz, Excl: 0.13 +/- 0.09 kHz
Line:    Hlt2Charm_DpDspToEtaKp_EtaToEpEpG_LineDecision                          Incl: 0.07 +/- 0.06 kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DpDspToEtaPip_EtaToEmEpG_LineDecision                         Incl: 0.07 +/- 0.06 kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DpDspToEtaPip_EtaToEpEpG_LineDecision                         Incl: 0.20 +/- 0.11 kHz, Excl: 0.13 +/- 0.09 kHz
Line:    Hlt2Charm_DpDspToKpPi0_Pi0ToEmEmEpEp_LineDecision                       Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DpDspToKpPi0_Pi0ToEmEpG_LineDecision                          Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DpDspToKpPi0_Pi0ToEpEpEpEp_LineDecision                       Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DpDspToKpPi0_Pi0ToEpEpG_LineDecision                          Incl: 0.13 +/- 0.09 kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DpDspToPipPi0_Pi0ToEmEmEpEp_LineDecision                      Incl: 0.07 +/- 0.06 kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DpDspToPipPi0_Pi0ToEmEpG_LineDecision                         Incl: 0.07 +/- 0.06 kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DpDspToPipPi0_Pi0ToEpEpEpEp_LineDecision                      Incl: 0.07 +/- 0.06 kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DpDspToPipPi0_Pi0ToEpEpG_LineDecision                         Incl: 0.07 +/- 0.06 kHz, Excl: 0.07 +/- 0.06 kHz
Line:    Hlt2Charm_DstpToD0Pip_D0ToEtaEta_EtaToEmEpG_LineDecision                Incl: 0.07 +/- 0.06 kHz, Excl: 0.07 +/- 0.06 kHz
Line:    Hlt2Charm_DstpToD0Pip_D0ToEtaEta_EtaToEpEpG_LineDecision                Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DstpToD0Pip_D0ToEtaKmPip_EtaToEmEpG_LineDecision              Incl: 0.13 +/- 0.09 kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DstpToD0Pip_D0ToEtaKmPip_EtaToEpEpG_LineDecision              Incl: 0.07 +/- 0.06 kHz, Excl: 0.07 +/- 0.06 kHz
Line:    Hlt2Charm_DstpToD0Pip_D0ToEtaPi0_Pi0ToEmEpG_EtaToEmEpG_LineDecision     Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DstpToD0Pip_D0ToEtaPi0_Pi0ToEpEpG_EtaToEpEpG_LineDecision     Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DstpToD0Pip_D0ToKmPipPi0_Pi0ToEmEmEpEp_LineDecision           Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DstpToD0Pip_D0ToKmPipPi0_Pi0ToEmEpG_LineDecision              Incl: 0.07 +/- 0.06 kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DstpToD0Pip_D0ToKmPipPi0_Pi0ToEpEpEpEp_LineDecision           Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DstpToD0Pip_D0ToKmPipPi0_Pi0ToEpEpG_LineDecision              Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DstpToD0Pip_D0ToPi0Pi0_Pi0ToEmEpG_LineDecision                Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_DstpToD0Pip_D0ToPi0Pi0_Pi0ToEpEpG_LineDecision                Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_LcpToPpEta_EtaToEmEpG_LineDecision                            Incl: 0.20 +/- 0.11 kHz, Excl: 0.07 +/- 0.06 kHz
Line:    Hlt2Charm_LcpToPpEta_EtaToEpEpG_LineDecision                            Incl: 0.13 +/- 0.09 kHz, Excl: 0.07 +/- 0.06 kHz
Line:    Hlt2Charm_LcpToPpPi0_Pi0ToEmEmEpEp_LineDecision                         Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_LcpToPpPi0_Pi0ToEmEpG_LineDecision                            Incl: 0.20 +/- 0.11 kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_LcpToPpPi0_Pi0ToEpEpEpEp_LineDecision                         Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Line:    Hlt2Charm_LcpToPpPi0_Pi0ToEpEpG_LineDecision                            Incl: 0.20 +/- 0.11 kHz, Excl: 0.0  +/- 0.0  kHz
----------------------------------------------------------------------------------------------------
Hlt2 Total:                                                                     Rate:    1 +/- 0.3 kHz
----------------------------------------------------------------------------------------------------

Signal Efficiencies The signal efficiencies have been studied using D+ -> pi+ (pi0 -> e+ e- gamma) and D+ -> pi+ (eta -> e+ e- gamma) samples. There seems to be a known issue with photon truth matching, so the denominators are with respect to reconstructable pi+, e+ and e- only.

Line:    Hlt2Charm_DpDspToPipPi0_Pi0ToEmEpG_LineDecision                                     Efficiency:     0.029 +/- 0.003
Line:	 Hlt2Charm_DpDspToEtaPip_EtaToEmEpG_LineDecision                                  	 Efficiency:	 0.027 +/- 0.003

Still to-do

  • Add a photon CL cut when supported
  • Use Dstar mass cut with child functors when supported
  • Investigate signal efficiencies
Edited by Tom Hadavizadeh

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