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

0519479 - FZÚ 2020 RIV US eng J - Journal Article
Aaboud, M. - Aad, G. - Abbott, B. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Jakoubek, Tomáš - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … Total 2877 authors
Searches for third-generation scalar leptoquarks in √s = 13 TeV pp collisions with the ATLAS detector.
Journal of High Energy Physics. Roč. 2019, č. 6 (2019), s. 1-48, č. článku 144. ISSN 1029-8479. E-ISSN 1029-8479
R&D Projects: GA MŠMT LM2015058
Institutional support: RVO:68378271
Keywords : ATLAS * final state: ((n)jet lepton) * final state: ((n)jet) * leptoquark: pair production * CERN LHC Coll
OECD category: Particles and field physics
Impact factor: 5.875, year: 2019
Method of publishing: Open access

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 (LQu3  → tν/bτ) and down-type (LQd3  → 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 LQu3 and LQd3 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.


Permanent Link: http://hdl.handle.net/11104/0304457