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

• Main Author: Taylor, Frank E (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor)
• Format: Article
• Language: English
• Published: Springer-Verlag, 2017-01-23T17:02:18Z.
• Subjects: Article
• Online Access: Get fulltext

 Searches for pair-produced scalar leptoquarks are performed using 20 fb[superscript −1] of proton-proton collision data provided by the LHC and recorded by the ATLAS detector at 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 bν[subscript τ][bar over b][bar over ν][subscript τ] and tν[subscript τ][bar over t][subscript ν][bar over ν][subscript 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[subscript LQ1]< 1050 GeV for first-generation leptoquarks, m[subscript LQ2]< 000 GeV for second-generation leptoquarks, m[subscript LQ3]< 625 GeV for third-generation leptoquarks in the bν[subscript τ][bar over b][bar over ν][subscript τ] channel, and 200 <m[subscript LQ3]< 640 GeV in the tν[subscript τ][bar over t][bar over ν][subscript τ] channel.