Searches for third-generation scalar leptoquarks in s√ = 13 TeV pp collisions with the ATLAS detector




Aaboud, M.
Aad, G.
Abbott, B.
Abbott, D.C.
Abdinov, O.
Abhayasinghe, D.K.
Abidi, S.H.
AbouZeid, O.S.
Abraham, N.L.
Abramowicz, H.

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Journal of High Energy Physics


Limits are set on the pair production of scalar leptoquarks, where all possible decays of the leptoquark into a quark (t, b) and a lepton (τ, ν) of the third generation are considered. The limits are presented as a function of the leptoquark mass and the branching ratio into charged leptons for up-type (LQ u3 → tν/bτ) and down-type (LQ d3 → bν/tτ) leptoquarks. Many results are reinterpretations of previously published ATLAS searches. In all cases, LHC proton-proton collision data at a centre-of-mass energy of s√ = 13 TeV recorded by the ATLAS detector in 2015 and 2016 are used, corresponding to an integrated luminosity of 36.1 fb−1. Masses below 800 GeV are excluded for both LQ u3 and LQ d3 independently of the branching ratio, with masses below about 1 TeV being excluded for the limiting cases of branching ratios equal to zero or unity.



Hadron-Hadron scattering (experiments)


Aaboud, M., Aad, G., Abbott, B., Abbot, D. C., Abdinbov, O., Abhayasinghe, D. K., … Zwalinksi, L. (2019). Searches for third-generation scalar leptoquarks in s√s = 13 TeV pp collisions with the ATLAS detector. Journal of High Energy Physics, 2019(6).