| 18 |
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The production of bottom squark pairs, followed by the decay $\tilde{b}\to b\lsp$, leads to events with |
| 19 |
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two b-jets and \met. In this section we report the results from a search with 11.7 fb$^{-1}$ |
| 20 |
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in the all-hadronic final state using the |
| 21 |
< |
\alphat\ variable, discussed below, which discriminates between backgrounds with real and fake \met. |
| 21 |
> |
\alphat\ variable.%, discussed below, which discriminates between backgrounds with real and fake \met. |
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|
| 23 |
< |
We require at least two jets with \pt\ $>$ 50 GeV. The leading (highest \pt) jet is required to be in the tracker |
| 23 |
> |
We count jets with \pt\ $>$ 50 GeV. The leading (highest \pt) jet is required to be in the tracker |
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acceptance defined by $|\eta|<2.5$, and the leading two jets must satisfy \pt\ $>$ 100 GeV. Events with isolated |
| 25 |
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electrons or muons with \pt\ $>$ 10 GeV are vetoed, in order to suppress backgrounds with neutrinos from the decays |
| 26 |
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of W bosons. Events with an isolated photon with \pt\ $>$ 25 GeV are vetoed. |
| 27 |
< |
The remaining events are categorized based on the number of b-tagged jets (using CSVM) and the event $H_T$, |
| 27 |
> |
The remaining events are categorized based on the jet multiplicity, the number of b-tagged jets (using CSVM) and the event $H_T$, |
| 28 |
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which is required to satisfy $H_T$ $>$ 275 GeV. |
| 29 |
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|
| 30 |
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The background satisfying the above preselection is dominated by QCD multijet production with fake \met\ from mismeasurement effects. To suppress this background, |
