A search for physics beyond the standard model is performed with one or more hadronically decaying τ-leptons, highly energetic jets and large momentum imbalance in the final state. The data sample corresponds to an integrated luminosity of 4.98 fb^{-1} of pp collisions at √s = 7 TeV collected with the CMS detector at the LHC. The number of observed events is consistent with data-driven predictions for standard model processes. In the absence of any evidence of supersymmetry, upper limits on the mass of the gluino have been set.
Figure | Abbreviated Caption |
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Figure 1: (a) dependence of the τ_{h} reconstruction efficiency on the number of additional particles in the isolation cone in bins of τ_{h} lepton p_{T} for the single τ_{h} final state where, N is the number of photons and charged hadrons in the isolation cone. |
Figure 1: (b) dependence of p_{T}^{τ,gen} on the τ_{h} response. Both distributions are derived from a simulated sample of W + jets events. |
Figure 3: (a) The rate of jet misidentification as a τ_{h} lepton in simulation (triangular markers) and data (circular markers) as a function of p_{T}^{jet} for events with H_{T}^{50} > 350 GeV and 40 < MHT < 60 GeV. |
Figure 3 (b) MHT distribution for the τ_{h} misidentification rate estimated in simulated events with H_{T}^{50} > 350 GeV, where the triangular symbols represent events that pass the baseline selection, the filled blue area shows the predicted events and the hatched area shows the total uncertainty on the prediction. These distributions correspond to the single τ_{h} final state. |
Data-MC comparison for the τ_{h} τ_{h} final state. Figure 4 (a) p_{T} distribution of the τ_{h} candidate in the ttbar CR. |
Data-MC comparison for the τ_{h} τ_{h} final state. Figure 4 (b) MHT distribution in the Z(→μμ) + jets CR which is used to estimate the number of Z(→νν) + jets events. |
Data-MC comparison for the τ_{h} τ_{h} final state. Figure 4 (c) MET distribution in the W + jets CR, |
Figure 8: Feynman diagram for the T3tauh SMS model. |
Exclusion limits are shown for the τ_{h}τ_{h} final state. Figure 9 (b) 95% CL cross section upper limits as a function of gluino mass in the GMSB scenario. |
Table 2: The percentage of multijet events in the MHT binned samples for different multijet dominated regions in the single τ_{h} final state. |
Table 3: Number of data and estimated background events with statistical and systematic uncertainties in the single τ_{h} final state. |
Table 4: Number of data and estimated background events with statistical and systematic uncertainties in the multiple τ_{h} final state. |
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