The European Physical Journal C > 2016 > 76 > 1 > 1-28
Searches for scalar leptoquarks in pp collisions at $$\varvec{\sqrt{s}}$$ s = 8 TeV with the ATLAS detector
Source
Abstract
Searches for pair-produced scalar leptoquarks are performed using 20 fb $$^{-1}$$ - 1 of proton–proton collision data provided by the LHC and recorded by the ATLAS detector at $$\sqrt{s}=8$$ 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 $$b\nu _{\tau }\bar{b}\bar{\nu _{\tau }}$$ b ν τ b ¯ ν τ ¯ and $$t\nu _{\tau }\bar{t}\bar{\nu _{\tau }}$$ t ν τ t ¯ ν τ ¯ 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 $$m_{\mathrm {LQ1}}<$$ m LQ 1 < 1050 GeV for first-generation leptoquarks, $$m_{\mathrm {LQ2}}<$$ m LQ 2 < 1000 GeV for second-generation leptoquarks, $$m_{\mathrm {LQ3}}<$$ m LQ 3 < 625 GeV for third-generation leptoquarks in the $$b\nu _{\tau }\bar{b}\bar{\nu _{\tau }}$$ b ν τ b ¯ ν τ ¯ channel, and 200 $$< m_{\mathrm {LQ3}}< $$ < m LQ 3 < 640 GeV in the $$t\nu _{\tau }\bar{t}\bar{\nu _{\tau }}$$ t ν τ t ¯ ν τ ¯ channel.
Identifiers
journal ISSN : | 1434-6044 |
journal e-ISSN : | 1434-6052 |
DOI | 10.1140/epjc/s10052-015-3823-9 |