Searches for scalar leptoquarks in pp collisions at √s = 8 TeV with the ATLAS detector

© 2015, CERN for the benefit of the ATLAS collaboration. 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 $$b\nu _{\tau }\bar{b}\bar{\nu _{\tau }}$$bντb¯ντ¯ and $$t\nu _{\tau }\bar{t}\bar{\nu _{\tau }}$$tντt¯ντ¯ 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 $$m_{\mathrm {LQ1}}<$$mLQ1< 1050 GeV for first-generation leptoquarks, $$m_{\mathrm {LQ2}}<$$mLQ2< 1000 GeV for second-generation leptoquarks, $$m_{\mathrm {LQ3}}<$$mLQ3< 625 GeV for third-generation leptoquarks in the $$b\nu _{\tau }\bar{b}\bar{\nu _{\tau }}$$bντb¯ντ¯ channel, and 200 $$< m_{\mathrm {LQ3}}< $$

Keywords:

• Large Hadron Collider
• Detector
• Particle physics
• Muon
• Scalar (physics)
• Nuclear physics
• Electron
• Physics
• Atlas (anatomy)
• Standard Model
• atlas detector

• Correction
• Source
• Cite
• Save
• Machine Reading By IdeaReader