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Search for gluinos in events with two same-sign leptons, jets and missing transverse momentum with the ATLAS detector in $pp$ collisions at $\sqrt{s}=7$ TeV

The ATLAS collaboration
Phys.Rev.Lett. 108 (2012) 241802, 2012

Abstract (data abstract)
CERN-LHC. A search for gluinos decaying via the supersymmetric partner of the top (STOP) quark using events with two same-sign (SS) leptons, jets and missing transverse momentum. from proton-proton interactions at a centre-of-mass energy of 7 TeV. The data set has a total integrated luminosity og 2.05 fb-1. No excess beyond the SM is observed and exclusion limits are derived for simplified models where the gluino decays via the STOP and in the MSUGRA/CSSM framework. Data from the additional plots in the auxiliary material is also liniked here. In the distributions, where applicable: The errors on the DATA points represent the statistical uncertainty. The errors on the SM BACKGROUND represent the total uncertainty. The column labelled SIGNAL corresponds to a signal obtained with the decay gluino-> top stop chargino via off mass-shell stop (mass=1.2 TeV) in gluino-gluino pair-produced events with m(gluino)=650 GeV and m(chargino)=150 GeV.

  • Table 1

    Data from F 1a

    10.17182/hepdata.58682.v1/t1

    Number of jets with pt>50 GeV for events with 2 SS leptons.

  • Table 2

    Data from F 1b

    10.17182/hepdata.58682.v1/t2

    Missing transverse momentum distribution for events with 2 SS leptons and at least 4 jets with pt>50 GeV.

  • Table 3

    Data from F Aux1

    10.17182/hepdata.58682.v1/t3

    Transverse mass distribution for events with 2 SS leptons and at least 4 jets with pt>50 GeV.

  • Table 4

    Data from F 2

    10.17182/hepdata.58682.v1/t4

    Observed 95% CL exclusion limits in the gluino to ttbar neutralino simplified model.

  • Table 5

    Data from F 2

    10.17182/hepdata.58682.v1/t5

    Expected 95% CL exclusion limits in the gluino to ttbar neutralino simplified model.

  • Table 6

    Data from F 3

    10.17182/hepdata.58682.v1/t6

    Observed 95% CL exclusion limits in the MSSM 24 parameter considering only gluino to stop_1+top with stop_1 to b+chargino.

  • Table 7

    Data from F 3

    10.17182/hepdata.58682.v1/t7

    Expected 95% CL exclusion limits in the MSSM 24 parameter considering only gluino to stop_1+top with stop_1 to b+chargino.

  • Table 8

    Data from F 4

    10.17182/hepdata.58682.v1/t8

    Observed 95% CL exclusion limits in the mSUGRA/CMSSM(m_0,M_1/2) plane for tan(beta)=10,A=0 and mu>0 model.

  • Table 9

    Data from F 4

    10.17182/hepdata.58682.v1/t9

    Expected 95% CL exclusion limits in the mSUGRA/CMSSM(m_0,M_1/2) plane for tan(beta)=10,A=0 and mu>0 model.

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