Searches for scalar leptoquarks in \(pp\) collisions at \(\sqrt{s}\) = 8 TeV with the ATLAS detector

Searches for pair-produced scalar leptoquarks are performed using 20 fb\(^{-1}\) of proton-proton collision data provided by the LHC and recorded by the ATLAS detector at \(\sqrt{s}=8\) TeV. Events with two electrons (muons) and two or more jets in the final state are used to search for first (second)-generation leptoquarks. The results from two previously published ATLAS analyses are interpreted in terms of third-generation leptoquarks decaying to \(b\nu_{\tau}\bar{b}\bar{\nu_{\tau}}\) and \(t\nu_{\tau}\bar{t}\bar{\nu_{\tau}}\) final states. No statistically significant excess above the Standard Model expectation is observed in any channel and scalar leptoquarks are excluded at 95% CL with masses up to \(m_{\mathrm{LQ1}}\) < 1050 GeV for first-generation leptoquarks, \(m_{\mathrm{LQ2}}\) < 1000 GeV for second-generation leptoquarks, \(m_{\mathrm{LQ3}} < \) 625 GeV for third-generation leptoquarks in the \(b\nu_{\tau}\bar{b}\bar{\nu_{\tau}}\) channel, and 200 \(< m_{\mathrm{LQ3}} < \) 640 GeV in the \(t\nu_{\tau}\bar{t}\bar{\nu_{\tau}}\) channel.