Search for Anomalous Production of Multilepton Events in pp Collisions at √s = 7 TeV

Abstract

We present a search for anomalous production of events with three or more isolated leptons in pp collisions at √s = 7 TeV collected by the CMS experiment at the LHC during the 2011 run. We analyze a data sample corresponding to 4.7 fb-1 of integrated luminosity. The search is applicable to any model of new physics that enhances multiple lepton production. The observed multilepton events are categorized into exclusive search channels based on the identity and kinematics of the objects in the events. A data-based estimation of the standard-model background rates is emphasized, but simulation is also used to estimate some of the background predictions where appropriate. The search results are interpreted in the context of supersymmetry, including both R-parity-conserving and R-parity-violating models. From these models, we derive exclusion limits as a function of squark and gluino masses.

Link to Publication

http://dx.doi.org/10.1007/JHEP06(2012)169

Approved Plots from EXO-11-045 and SUS-11-013 (Click on blue names in the right column to download files)

Note: The plots are in the following order:

  • Tables with Final Event Yields

  • Exclusion Plots

  • TTbar control channel ST plots

  • Background plots for channels with ST binning

  • Background plots for channels with MET-HT binning

  • Lepton Fake-rate Plots

  • Relative Isolation Plots

  • Three-lepton ST, MET and HT plots

Figure Abbreviated Caption
ReRecoRA7_Paper_Formatted.png ReRecoRA7_Paper_Formatted.pdf: Table for MET-HT Binning
ReRecoRPV_Paper_Formatted.png ReRecoRPV_Paper_Formatted.pdf: Table for ST Binning
exclu_conlsp4.7.png exclu_conlsp4.7.pdf: Exclusion Plot for coNLSP Scenario (See Paper for more details)
exclu_hadrpv4.7.png exclu_hadrpv4.7.pdf: Exclusion Plot for Hadronic RPV (See Paper for more details)
exclu_leprpv4.7.png exclu_leprpv4.7.pdf: Exclusion Plot for Leptonic RPV (See Paper for more details)
SRAttbar_STgt400_CMS_LOG.png SRAttbar_STgt400_CMS_LOG.pdf: Mono-lepton ttbar control channel
SRAseedelmuq0_STgt400_CMS_LOG.png SRAseedelmuq0_STgt400_CMS_LOG.pdf: Di-lepton ttbar control channel
L3T0_DD_RPV_CMS.png L3T0_DD_RPV_CMS.pdf: Background breakdown for ST Binning: 3-lepton (0 Taus) Channels
L3T1_DD_RPV_CMS.png L3T1_DD_RPV_CMS.pdf: Background breakdown for ST Binning: 3-lepton (1 Tau) Channels
L3T2_DD_RPV_CMS.png L3T2_DD_RPV_CMS.pdf: Background breakdown for ST Binning: 3-lepton (2 Taus) Channels
L4T0_DD_RPV_CMS.png L4T0_DD_RPV_CMS.pdf: Background breakdown for ST Binning: 4-lepton (0 Taus) Channels
L4T1_DD_RPV_CMS.png L4T1_DD_RPV_CMS.pdf: Background breakdown for ST Binning: 4-lepton (1 Tau) Channels
L4T2_DD_RPV_CMS.png L4T2_DD_RPV_CMS.pdf: Background breakdown for ST Binning: 4-lepton (2 Taus) Channels
L3T0_DD_RA7_CMS.png L3T0_DD_RA7_CMS.pdf: Background breakdown for MET-HT Binning: 3-lepton (0 Taus) Channels
L3T1_DD_RA7_CMS.png L3T1_DD_RA7_CMS.pdf: Background breakdown for MET-HT Binning: 3-lepton (1 Tau) Channels
L3T2_DD_RA7_CMS.png L3T2_DD_RA7_CMS.pdf: Background breakdown for MET-HT Binning: 3-lepton (2 Taus) Channels
L4T0_DD_RA7_CMS.png L4T0_DD_RA7_CMS.pdf: Background breakdown for MET-HT Binning: 4-lepton (0 Taus) Channels
L4T1_DD_RA7_CMS.png L4T1_DD_RA7_CMS.pdf: Background breakdown for MET-HT Binning: 4-lepton (1 Tau) Channels
L4T2_DD_RA7_CMS.png L4T2_DD_RA7_CMS.pdf: Background breakdown for MET-HT Binning: 4-lepton (2 Taus) Channels
SRAttbarjetMuUNBIASED_relIso_CMS_LINEAR.png SRAttbarjetMuUNBIASED_relIso_CMS_LINEAR.pdf: Isolation Distribution of muons with large impact parameter (>0.02 cm, primarily from jets)
dd_fsr_plot.png dd_fsr_plot.pdf: Trilepton invariant mass distribution after all other selections for channel.
dd_ST_plot.png dd_ST_plot.pdf: The ST distributions for three-lepton events passing all selection criteria for the three lepton, no-τ channel, except ST: Z decays included.
dd_ST_plotZV.png dd_ST_plotZV.pdf: The ST distributions for three-lepton events passing all selection criteria for the three lepton, no-τ channel, except ST: Z-veto applied.
dd_SUSY_ht_plot.png dd_SUSY_ht_plot.pdf: The HT distribution for three-lepton events (excluding taus and MET>50) passing all selection criteria: Z decays included
dd_SUSY_ht_plotZV.png dd_SUSY_ht_plotZV.pdf: The HT distribution for three-lepton events (excluding taus and MET>50) passing all selection criteria: Z-veto applied
dd_SUSY_met_plot.png dd_SUSY_met_plot.pdf: The MET distribution for three-lepton events (excluding taus and HT<200) passing all selection criteria: Z decays included
dd_SUSY_met_plotZV.png dd_SUSY_met_plotZV.pdf: The MET distribution for three-lepton events (excluding taus and HT<200) passing all selection criteria: Z-veto applied

Reinterpretation in simplified models (see the CMS-PAS-SUS-11-016 for the description).

TChiNuSlep_slep.png h_eff_TChiSlep_MULTILEPTON.png h_limit_TChiSlep_MULTILEPTON.png UL_TChiSlepSlep.png

TChiwz.png h_eff_TChiwz_MULTILEPTON.png UL_TChiwz.png

TChizz.png h_eff_TChizz_MULTILEPTON.png UL_TChizz.png

Links to documentation in CDS

-- SanjayArora - 30-Apr-2012

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf L3T0_DD_RA7_CMS.pdf r1 manage 20.6 K 2012-05-01 - 16:46 SanjayArora  
PNGpng L3T0_DD_RA7_CMS.png r1 manage 35.5 K 2012-05-01 - 16:49 SanjayArora  
PDFpdf L3T0_DD_RPV_CMS.pdf r1 manage 18.9 K 2012-05-01 - 16:46 SanjayArora  
PNGpng L3T0_DD_RPV_CMS.png r1 manage 38.8 K 2012-05-01 - 16:49 SanjayArora  
PDFpdf L3T1_DD_RA7_CMS.pdf r1 manage 20.3 K 2012-05-01 - 16:46 SanjayArora  
PNGpng L3T1_DD_RA7_CMS.png r1 manage 30.7 K 2012-05-01 - 16:49 SanjayArora  
PDFpdf L3T1_DD_RPV_CMS.pdf r1 manage 18.4 K 2012-05-01 - 16:46 SanjayArora  
PNGpng L3T1_DD_RPV_CMS.png r1 manage 30.2 K 2012-05-01 - 16:49 SanjayArora  
PDFpdf L3T2_DD_RA7_CMS.pdf r1 manage 17.6 K 2012-05-01 - 16:46 SanjayArora  
PNGpng L3T2_DD_RA7_CMS.png r1 manage 24.0 K 2012-05-01 - 16:50 SanjayArora  
PDFpdf L3T2_DD_RPV_CMS.pdf r1 manage 16.5 K 2012-05-01 - 16:47 SanjayArora  
PNGpng L3T2_DD_RPV_CMS.png r1 manage 24.7 K 2012-05-01 - 16:50 SanjayArora  
PDFpdf L4T0_DD_RA7_CMS.pdf r1 manage 17.9 K 2012-05-01 - 16:47 SanjayArora  
PNGpng L4T0_DD_RA7_CMS.png r1 manage 30.4 K 2012-05-01 - 16:50 SanjayArora  
PDFpdf L4T0_DD_RPV_CMS.pdf r1 manage 20.9 K 2012-05-01 - 16:47 SanjayArora  
PNGpng L4T0_DD_RPV_CMS.png r1 manage 43.9 K 2012-05-01 - 16:50 SanjayArora  
PDFpdf L4T1_DD_RA7_CMS.pdf r1 manage 18.1 K 2012-05-01 - 16:48 SanjayArora  
PNGpng L4T1_DD_RA7_CMS.png r1 manage 35.3 K 2012-05-01 - 16:51 SanjayArora  
PDFpdf L4T1_DD_RPV_CMS.pdf r1 manage 18.7 K 2012-05-01 - 16:48 SanjayArora  
PNGpng L4T1_DD_RPV_CMS.png r1 manage 46.1 K 2012-05-01 - 16:51 SanjayArora  
PDFpdf L4T2_DD_RA7_CMS.pdf r1 manage 19.4 K 2012-05-01 - 16:48 SanjayArora  
PNGpng L4T2_DD_RA7_CMS.png r1 manage 47.3 K 2012-05-01 - 16:51 SanjayArora  
PDFpdf L4T2_DD_RPV_CMS.pdf r1 manage 18.5 K 2012-05-01 - 16:48 SanjayArora  
PNGpng L4T2_DD_RPV_CMS.png r1 manage 42.4 K 2012-05-01 - 16:51 SanjayArora  
PDFpdf ReRecoRA7_Paper_Formatted.pdf r1 manage 34.4 K 2012-05-01 - 17:24 SanjayArora  
PNGpng ReRecoRA7_Paper_Formatted.png r1 manage 21.1 K 2012-05-01 - 18:05 SanjayArora  
PDFpdf ReRecoRPV_Paper_Formatted.pdf r1 manage 43.6 K 2012-05-01 - 17:24 SanjayArora  
PNGpng ReRecoRPV_Paper_Formatted.png r1 manage 16.3 K 2012-05-01 - 18:05 SanjayArora  
PDFpdf SRAseedelmuq0_STgt400_CMS_LOG.pdf r1 manage 19.7 K 2012-05-01 - 16:42 SanjayArora  
PNGpng SRAseedelmuq0_STgt400_CMS_LOG.png r1 manage 25.5 K 2012-05-01 - 16:43 SanjayArora  
PDFpdf SRAttbar_STgt400_CMS_LOG.pdf r1 manage 21.0 K 2012-05-01 - 16:42 SanjayArora  
PNGpng SRAttbar_STgt400_CMS_LOG.png r1 manage 31.2 K 2012-05-01 - 16:43 SanjayArora  
PDFpdf SRAttbarjetMuUNBIASED_relIso_CMS_LINEAR.pdf r1 manage 25.0 K 2012-05-01 - 17:00 SanjayArora  
PNGpng SRAttbarjetMuUNBIASED_relIso_CMS_LINEAR.png r1 manage 29.6 K 2012-05-01 - 17:01 SanjayArora  
PDFpdf UL_TChiSlepSlep.pdf r1 manage 8.1 K 2012-05-03 - 13:27 MariarosariaDalfonso  
PNGpng UL_TChiSlepSlep.png r1 manage 454.3 K 2012-05-03 - 13:26 MariarosariaDalfonso  
PDFpdf UL_TChiwz.pdf r1 manage 7.3 K 2012-05-03 - 13:28 MariarosariaDalfonso  
PNGpng UL_TChiwz.png r1 manage 416.9 K 2012-05-03 - 13:25 MariarosariaDalfonso  
PDFpdf UL_TChizz.pdf r1 manage 5.8 K 2012-05-03 - 13:28 MariarosariaDalfonso  
PNGpng UL_TChizz.png r1 manage 350.0 K 2012-05-03 - 13:26 MariarosariaDalfonso  
PDFpdf dd_ST_plot.pdf r1 manage 19.8 K 2012-05-01 - 17:05 SanjayArora  
PNGpng dd_ST_plot.png r1 manage 40.9 K 2012-05-01 - 17:05 SanjayArora  
PDFpdf dd_ST_plotZV.pdf r1 manage 19.7 K 2012-05-01 - 17:05 SanjayArora  
PNGpng dd_ST_plotZV.png r1 manage 41.0 K 2012-05-01 - 17:05 SanjayArora  
PDFpdf dd_SUSY_ht_plot.pdf r1 manage 16.9 K 2012-05-01 - 17:07 SanjayArora  
PNGpng dd_SUSY_ht_plot.png r1 manage 37.2 K 2012-05-01 - 17:07 SanjayArora  
PDFpdf dd_SUSY_ht_plotZV.pdf r1 manage 17.4 K 2012-05-01 - 17:07 SanjayArora  
PNGpng dd_SUSY_ht_plotZV.png r1 manage 45.6 K 2012-05-01 - 17:07 SanjayArora  
PDFpdf dd_SUSY_met_plot.pdf r1 manage 21.2 K 2012-05-01 - 17:10 SanjayArora  
PNGpng dd_SUSY_met_plot.png r1 manage 46.1 K 2012-05-01 - 17:11 SanjayArora  
PDFpdf dd_SUSY_met_plotZV.pdf r1 manage 21.1 K 2012-05-01 - 17:11 SanjayArora  
PNGpng dd_SUSY_met_plotZV.png r1 manage 46.3 K 2012-05-01 - 17:12 SanjayArora  
PDFpdf dd_fsr_plot.pdf r1 manage 14.9 K 2012-05-01 - 17:03 SanjayArora  
PNGpng dd_fsr_plot.png r1 manage 25.4 K 2012-05-01 - 17:04 SanjayArora  
PDFpdf exclu_conlsp4.7.pdf r1 manage 14.2 K 2012-05-01 - 16:34 SanjayArora  
PNGpng exclu_conlsp4.7.png r1 manage 35.5 K 2012-05-01 - 16:35 SanjayArora  
PDFpdf exclu_hadrpv4.7.pdf r1 manage 14.6 K 2012-05-01 - 16:34 SanjayArora  
PNGpng exclu_hadrpv4.7.png r1 manage 40.5 K 2012-05-01 - 16:36 SanjayArora  
PDFpdf exclu_leprpv4.7.pdf r1 manage 13.8 K 2012-05-01 - 16:34 SanjayArora  
PNGpng exclu_leprpv4.7.png r1 manage 36.2 K 2012-05-01 - 16:36 SanjayArora  
PNGpng h_eff_T5zz_MULTILEPTON.png r1 manage 38.7 K 2013-01-16 - 14:16 FedorRatnikov  
PDFpdf h_eff_TChiSlep_MULTILEPTON.pdf r1 manage 21.5 K 2012-05-03 - 13:30 MariarosariaDalfonso  
PNGpng h_eff_TChiSlep_MULTILEPTON.png r1 manage 367.6 K 2012-05-03 - 13:30 MariarosariaDalfonso  
PDFpdf h_eff_TChiwz_MULTILEPTON.pdf r2 r1 manage 14.3 K 2013-01-16 - 14:16 FedorRatnikov  
PNGpng h_eff_TChiwz_MULTILEPTON.png r2 r1 manage 33.4 K 2013-01-16 - 14:16 FedorRatnikov  
PDFpdf h_eff_TChizz_MULTILEPTON.pdf r2 r1 manage 14.1 K 2013-01-16 - 14:16 FedorRatnikov  
PNGpng h_eff_TChizz_MULTILEPTON.png r2 r1 manage 32.9 K 2013-01-16 - 14:24 FedorRatnikov  
PDFpdf h_limit_TChiSlep_MULTILEPTON.pdf r1 manage 21.9 K 2012-05-03 - 13:30 MariarosariaDalfonso  
PNGpng h_limit_TChiSlep_MULTILEPTON.png r1 manage 439.2 K 2012-05-03 - 13:25 MariarosariaDalfonso  
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