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

Date

2019

Authors

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.

Journal Title

Journal ISSN

Volume Title

Publisher

Journal of High Energy Physics

Abstract

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.

Description

Keywords

Hadron-Hadron scattering (experiments)

Citation

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). https://doi.org/10.1007/JHEP06(2019)144