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Search for supersymmetry in events with four or more leptons in $\sqrt{s}$ = 8 TeV pp collisions with the ATLAS detector

The ATLAS collaboration
Phys.Rev. D90 (2014) 052001, 2014

Abstract (data abstract)
CERN-LHC. Results from a search for supersymmetry in events with four or more leptons including electrons, muons and taus are presented. The analysis uses a data sample corresponding to 20.3 fb^{-1} of proton-proton collisions delivered by the Large Hadron Collider at sqrt(s) = 8 TeV and recorded by the ATLAS detector. Signal regions are designed to target supersymmetric scenarios that can be either enriched in or depleted of events involving the production of a Z boson. No significant deviations are observed in data from Standard Model predictions and results are used to set upper limits on the event yields from processes beyond the Standard Model. Exclusion limits at the 95% confidence level on the masses of relevant supersymmetric particles are obtained. In R-parity-violating simplified models with decays of the lightest supersymmetric particle to electrons and muons, limits of 1350 GeV and 750 GeV are placed on gluino and chargino masses, respectively. In R-parity-conserving simplified models with heavy neutralinos decaying to a massless lightest supersymmetric particle, heavy neutralino masses up to 620 GeV are excluded. Limits are also placed on other supersymmetric scenarios.

  • Table 1

    Data from Figure 4a

    10.17182/hepdata.63284.v1/t1

    The ETmiss distribution in VR0Z.

  • Table 2

    Data from Figure 4b

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    The effective mass distribution in VR0Z.

  • Table 3

    Data from Figure 4c

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    The ETmiss distribution in VR2Z.

  • Table 4

    Data from Figure 4d

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    The effective mass distribution in VR2Z.

  • Table 5

    Data from Figure 5a

    10.17182/hepdata.63284.v1/t5

    The ETmiss distribution in SR0noZa.

  • Table 6

    Data from Figure 5b

    10.17182/hepdata.63284.v1/t6

    The effective mass distribution in SR0noZa.

  • Table 7

    Data from Figure 5c

    10.17182/hepdata.63284.v1/t7

    The ETmiss distribution in SR1noZa.

  • Table 8

    Data from Figure 5d

    10.17182/hepdata.63284.v1/t8

    The effective mass distribution in SR1noZa.

  • Table 9

    Data from Figure 5e

    10.17182/hepdata.63284.v1/t9

    The ETmiss distribution in SR2noZa.

  • Table 10

    Data from Figure 5f

    10.17182/hepdata.63284.v1/t10

    The effective mass distribution in SR2noZa.

  • Table 11

    Data from Figure 6a

    10.17182/hepdata.63284.v1/t11

    The ETmiss distribution in SR0noZb.

  • Table 12

    Data from Figure 6b

    10.17182/hepdata.63284.v1/t12

    The effective mass distribution in SR0noZb.

  • Table 13

    Data from Figure 6c

    10.17182/hepdata.63284.v1/t13

    The ETmiss distribution in SR1noZb.

  • Table 14

    Data from Figure 6d

    10.17182/hepdata.63284.v1/t14

    The effective mass distribution in SR1noZb.

  • Table 15

    Data from Figure 6e

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    The ETmiss distribution in SR2noZb.

  • Table 16

    Data from Figure 6f

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    The effective mass distribution in SR2noZb.

  • Table 17

    Data from Figure 7a

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    The ETmiss distribution in SR0Z.

  • Table 18

    Data from Figure 7b

    10.17182/hepdata.63284.v1/t18

    The effective mass distribution in SR0Z.

  • Table 19

    Data from Figure 7c

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    The ETmiss distribution in SR1Z.

  • Table 20

    Data from Figure 7d

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    The effective mass distribution in SR1Z.

  • Table 21

    Data from Figure 7e

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    The ETmiss distribution in SR2Z.

  • Table 22

    Data from Figure 7f

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    The effective mass distribution in SR2Z.

  • Table 23

    Data from Figure 8a

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    Observed 95% CL exclusion contour for the RPV chargino NLSP model with lambda_121 != 0.

  • Table 24

    Data from Figure 8a

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    Expected 95% CL exclusion contour for the RPV chargino NLSP model with lambda_121 != 0.

  • Table 25

    Data from Figure 8a

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    Observed 95% CL exclusion contour for the RPV chargino NLSP model with lambda_122 != 0.

  • Table 26

    Data from Figure 8a

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    Expected 95% CL exclusion contour for the RPV chargino NLSP model with lambda_122 != 0.

  • Table 27

    Data from Figure 8a

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    Observed 95% CL exclusion contour for the RPV chargino NLSP model with lambda_133 != 0.

  • Table 28

    Data from Figure 8a

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    Expected 95% CL exclusion contour for the RPV chargino NLSP model with lambda_133 != 0.

  • Table 29

    Data from Figure 8a

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    Observed 95% CL exclusion contour for the RPV chargino NLSP model with lambda_233 != 0.

  • Table 30

    Data from Figure 8a

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    Expected 95% CL exclusion contour for the RPV chargino NLSP model with lambda_233 != 0.

  • Table 31

    Data from Figure 8b

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    Observed 95% CL exclusion contour for the RPV gluino NLSP model with lambda_121 != 0.

  • Table 32

    Data from Figure 8b

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    Expected 95% CL exclusion contour for the RPV gluino NLSP model with lambda_121 != 0.

  • Table 33

    Data from Figure 8b

    10.17182/hepdata.63284.v1/t33

    Observed 95% CL exclusion contour for the RPV gluino NLSP model with lambda_122 != 0.

  • Table 34

    Data from Figure 8b

    10.17182/hepdata.63284.v1/t34

    Expected 95% CL exclusion contour for the RPV gluino NLSP model with lambda_122 != 0.

  • Table 35

    Data from Figure 8b

    10.17182/hepdata.63284.v1/t35

    Observed 95% CL exclusion contour for the RPV gluino NLSP model with lambda_133 != 0.

  • Table 36

    Data from Figure 8b

    10.17182/hepdata.63284.v1/t36

    Expected 95% CL exclusion contour for the RPV gluino NLSP model with lambda_133 != 0.

  • Table 37

    Data from Figure 8b

    10.17182/hepdata.63284.v1/t37

    Observed 95% CL exclusion contour for the RPV gluino NLSP model with lambda_233 != 0.

  • Table 38

    Data from Figure 8b

    10.17182/hepdata.63284.v1/t38

    Expected 95% CL exclusion contour for the RPV gluino NLSP model with lambda_233 != 0.

  • Table 39

    Data from Figure 9a

    10.17182/hepdata.63284.v1/t39

    Observed 95% CL exclusion contour for the RPV Lslepton NLSP model with lambda_121 != 0.

  • Table 40

    Data from Figure 9a

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    Expected 95% CL exclusion contour for the RPV Lslepton NLSP model with lambda_121 != 0.

  • Table 41

    Data from Figure 9a

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    Observed 95% CL exclusion contour for the RPV Lslepton NLSP model with lambda_122 != 0.

  • Table 42

    Data from Figure 9a

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    Expected 95% CL exclusion contour for the RPV Lslepton NLSP model with lambda_122 != 0.

  • Table 43

    Data from Figure 9a

    10.17182/hepdata.63284.v1/t43

    Observed 95% CL exclusion contour for the RPV Lslepton NLSP model with lambda_133 != 0.

  • Table 44

    Data from Figure 9a

    10.17182/hepdata.63284.v1/t44

    Expected 95% CL exclusion contour for the RPV Lslepton NLSP model with lambda_133 != 0.

  • Table 45

    Data from Figure 9a

    10.17182/hepdata.63284.v1/t45

    Observed 95% CL exclusion contour for the RPV Lslepton NLSP model with lambda_233 != 0.

  • Table 46

    Data from Figure 9a

    10.17182/hepdata.63284.v1/t46

    Expected 95% CL exclusion contour for the RPV Lslepton NLSP model with lambda_233 != 0.

  • Table 47

    Data from Figure 9b

    10.17182/hepdata.63284.v1/t47

    Observed 95% CL exclusion contour for the RPV Rslepton NLSP model with lambda_121 != 0.

  • Table 48

    Data from Figure 9b

    10.17182/hepdata.63284.v1/t48

    Expected 95% CL exclusion contour for the RPV Rslepton NLSP model with lambda_121 != 0.

  • Table 49

    Data from Figure 9b

    10.17182/hepdata.63284.v1/t49

    Observed 95% CL exclusion contour for the RPV Rslepton NLSP model with lambda_122 != 0.

  • Table 50

    Data from Figure 9b

    10.17182/hepdata.63284.v1/t50

    Expected 95% CL exclusion contour for the RPV Rslepton NLSP model with lambda_122 != 0.

  • Table 51

    Data from Figure 9b

    10.17182/hepdata.63284.v1/t51

    Observed 95% CL exclusion contour for the RPV Rslepton NLSP model with lambda_133 != 0.

  • Table 52

    Data from Figure 9b

    10.17182/hepdata.63284.v1/t52

    Expected 95% CL exclusion contour for the RPV Rslepton NLSP model with lambda_133 != 0.

  • Table 53

    Data from Figure 9b

    10.17182/hepdata.63284.v1/t53

    Observed 95% CL exclusion contour for the RPV Rslepton NLSP model with lambda_233 != 0.

  • Table 54

    Data from Figure 9b

    10.17182/hepdata.63284.v1/t54

    Expected 95% CL exclusion contour for the RPV Rslepton NLSP model with lambda_233 != 0.

  • Table 55

    Data from Figure 9c

    10.17182/hepdata.63284.v1/t55

    Observed 95% CL exclusion contour for the RPV sneutrino NLSP model with lambda_121 != 0.

  • Table 56

    Data from Figure 9c

    10.17182/hepdata.63284.v1/t56

    Expected 95% CL exclusion contour for the RPV sneutrino NLSP model with lambda_121 != 0.

  • Table 57

    Data from Figure 9c

    10.17182/hepdata.63284.v1/t57

    Observed 95% CL exclusion contour for the RPV sneutrino NLSP model with lambda_122 != 0.

  • Table 58

    Data from Figure 9c

    10.17182/hepdata.63284.v1/t58

    Expected 95% CL exclusion contour for the RPV sneutrino NLSP model with lambda_122 != 0.

  • Table 59

    Data from Figure 9c

    10.17182/hepdata.63284.v1/t59

    Observed 95% CL exclusion contour for the RPV sneutrino NLSP model with lambda_133 != 0.

  • Table 60

    Data from Figure 9c

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    Expected 95% CL exclusion contour for the RPV sneutrino NLSP model with lambda_133 != 0.

  • Table 61

    Data from Figure 9c

    10.17182/hepdata.63284.v1/t61

    Observed 95% CL exclusion contour for the RPV sneutrino NLSP model with lambda_233 != 0.

  • Table 62

    Data from Figure 9c

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    Expected 95% CL exclusion contour for the RPV sneutrino NLSP model with lambda_233 != 0.

  • Table 63

    Data from Figure 10a

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    Observed 95% CL exclusion contour for the R-slepton RPC model.

  • Table 64

    Data from Figure 10a

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    Expected 95% CL exclusion contour for the R-slepton RPC model.

  • Table 65

    Data from Figure 10b

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    Observed and expected 95% CL cross-section upper limits for the Stau RPC model, together with the theoretically predicted cross-section.

  • Table 66

    Data from Figure 10c

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    Observed and expected 95% CL cross-section upper limits for the Z RPC model, together with the theoretically predicted cross-section.

  • Table 67

    Data from Figure 11a

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    Observed 95% CL exclusion contour for the GGM tan beta = 1.5 model.

  • Table 68

    Data from Figure 11a

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    Expected 95% CL exclusion contour for the GGM tan beta = 1.5 model.

  • Table 69

    Data from Figure 11b

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    Observed 95% CL exclusion contour for the GGM tan beta = 30 model.

  • Table 70

    Data from Figure 11b

    10.17182/hepdata.63284.v1/t70

    Expected 95% CL exclusion contour for the GGM tan beta = 30 model.

  • Table 71

    Data from Auxiliary Figures 1a, 1b, 7a, 7b

    10.17182/hepdata.63284.v1/t71

    Observed 95% CL cross-section upper limit for the RPV chargino NLSP models with lambda_121 != 0 and lambda_122 != 0,...

  • Table 72

    Data from Auxiliary Figures 1c, 1d, 7c, 7d

    10.17182/hepdata.63284.v1/t72

    Observed 95% CL cross-section upper limit for the RPV chargino NLSP models with lambda_133 != 0 and lambda_233 != 0,...

  • Table 73

    Data from Auxiliary Figures 2a, 2b, 7e, 7f

    10.17182/hepdata.63284.v1/t73

    Observed 95% CL cross-section upper limit for the RPV gluino NLSP models with lambda_121 != 0 and lambda_122 != 0,...

  • Table 74

    Data from Auxiliary Figures 2c, 2d, 7g, 7h

    10.17182/hepdata.63284.v1/t74

    Observed 95% CL cross-section upper limit for the RPV gluino NLSP models with lambda_133 != 0 and lambda_233 != 0,...

  • Table 75

    Data from Auxiliary Figures 3a, 3b, 8a, 8b

    10.17182/hepdata.63284.v1/t75

    Observed 95% CL cross-section upper limit for the RPV Lslepton NLSP models with lambda_121 != 0 and lambda_122 != 0,...

  • Table 76

    Data from Auxiliary Figures 3c, 3d, 8c, 8d

    10.17182/hepdata.63284.v1/t76

    Observed 95% CL cross-section upper limit for the RPV Lslepton NLSP models with lambda_133 != 0 and lambda_233 != 0,...

  • Table 77

    Data from Auxiliary Figures 4a, 4b, 8e, 8f

    10.17182/hepdata.63284.v1/t77

    Observed 95% CL cross-section upper limit for the RPV Rslepton NLSP models with lambda_121 != 0 and lambda_122 != 0,...

  • Table 78

    Data from Auxiliary Figures 4c, 4d, 8g, 8h

    10.17182/hepdata.63284.v1/t78

    Observed 95% CL cross-section upper limit for the RPV Rslepton NLSP models with lambda_133 != 0 and lambda_233 != 0,...

  • Table 79

    Data from Auxiliary Figures 5a, 5b, 9a, 9b

    10.17182/hepdata.63284.v1/t79

    Observed 95% CL cross-section upper limit for the RPV sneutrino NLSP models with lambda_121 != 0 and lambda_122 != 0,...

  • Table 80

    Data from Auxiliary Figures 5c, 5d, 9c, 9d

    10.17182/hepdata.63284.v1/t80

    Observed 95% CL cross-section upper limit for the RPV sneutrino NLSP models with lambda_133 != 0 and lambda_233 != 0,...

  • Table 81

    Data from Auxiliary Figures 6, 10

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    Observed 95% CL cross-section upper limit for the R-slepton RPC model, and the selection of Z-veto signal regions used to...

  • Table 82

    Data from Auxiliary Figures 11a, 12a, 13a-e

    10.17182/hepdata.63284.v1/t82

    Performance of the SR0noZa selection in the R-slepton RPC model: number of generated signal events; total signal cross-section; acceptance; efficiency;...

  • Table 83

    Data from Auxiliary Figures 11c, 12c, 14a-e

    10.17182/hepdata.63284.v1/t83

    Performance of the SR0noZb selection in the RPV chargino NLSP model with lambda_121 != 0: number of generated signal events;...

  • Table 84

    Data from Auxiliary Figures 11d, 12d, 15a-e

    10.17182/hepdata.63284.v1/t84

    Performance of the SR1noZa selection in the RPV sneutrino NLSP model with lambda_233 != 0: number of generated signal events;...

  • Table 85

    Data from Auxiliary Figures 11e, 12e, 16a-e

    10.17182/hepdata.63284.v1/t85

    Performance of the SR1noZb selection in the RPV gluino NLSP model with lambda_133 != 0: number of generated signal events;...

  • Table 86

    Data from Auxiliary Figures 11d, 12d, 17a-e

    10.17182/hepdata.63284.v1/t86

    Performance of the SR2noZa selection in the RPV sneutrino NLSP model with lambda_233 != 0: number of generated signal events;...

  • Table 87

    Data from Auxiliary Figures 11e, 12e, 18a-e

    10.17182/hepdata.63284.v1/t87

    Performance of the SR2noZb selection in the RPV gluino NLSP model with lambda_133 != 0: number of generated signal events;...

  • Table 88

    Data from Auxiliary Figures 11b, 12b, 19a-e

    10.17182/hepdata.63284.v1/t88

    Performance of the SR0Z selection in the GGM tan beta = 30 model: number of generated signal events; total signal...

  • Table 89

    Data from Auxiliary Figure 20

    10.17182/hepdata.63284.v1/t89

    Cut flows for a representative selection of SUSY signal points in the Z-veto signal regions. In each case, m2 and...

  • Table 90

    Data from Auxiliary Figure 21

    10.17182/hepdata.63284.v1/t90

    Cut flows for a representative selection of SUSY signal points in the Z-rich signal regions. In each case, m2 and...

  • Table 91

    Data from Auxiliary Figure 22

    10.17182/hepdata.63284.v1/t91

    Cut flows by lepton channel for a representative selection of SUSY signal points in the SR0noZa signal region. In each...

  • Table 92

    Data from Auxiliary Figure 22

    10.17182/hepdata.63284.v1/t92

    Cut flows by lepton channel for a representative selection of SUSY signal points in the SR1noZb signal region. In each...

  • Table 93

    Data from Auxiliary Figure 22

    10.17182/hepdata.63284.v1/t93

    Cut flows by lepton channel for a representative selection of SUSY signal points in the SR0Z signal region. In each...

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