Search for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector
- Aad, Georges et al
- arXiv:1201.5595CERN-PH-EP-2011-188
 | noimgSignal Monte Carlo stopping fractions for various gluino mass values with their statistical uncertainties. Each efficiency is the number of $R$-hadrons that stop anywhere in the detector divided by the number of produced $R$-hadrons events. Some $R$-hadrons stop in parts of the detector where there is little sensitivity to detect their decay. This is accounted for in the reconstruction efficiency in Table~\ref{tab:cutflow2jet}. |
 | Percentage timing efficiency as a function of gluino lifetime. The region $10^{-5}$ to $10^3$$\,$seconds has the highest efficiency, approximately 37$\%$. For shorter lifetimes many $R$-hadrons decay in paired bunch crossings while for longer lifetimes many decay when ATLAS is not taking data. The solid line is calculated with the assumption that no $R$-hadron survived from one run to the next (allowing a per run analysis for shorter lifetimes). The dashed line is calculated after averaging over bunch structure but does allow $R$-hadrons to decay in a run they are not produced in. |
 | Jet energy for single jet channelLeading jet energy for multi-jet channelCaption not extracted |
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 | Jet energy for single jet channelLeading jet energy for multi-jet channelCaption not extracted |
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 | The 95\% C.L. limit on the gluino pair production cross-section as a function of gluino mass, $m_{\tilde{g}}$, assuming $m_{\tilde{\chi}^0_1}$=100$\,$GeV. Limits are shown for the {\it Generic} stopping model and $\tilde{g} \rightarrow g\nino$ decay. |