Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/106289
Title: Search for pairs of scalar leptoquarks decaying into quarks and electrons or muons in √s = 13 TeV pp collisions with the ATLAS detector
Authors: Fiolhais, M. C. N. 
Gonçalo, R. 
Veloso, F. 
Wolters, H. 
ATLAS Collaboration
Keywords: Beyond Standard Model; Exotics; Hadron-Hadron scattering (experiments); Particle and resonance production
Issue Date: 2020
Publisher: Springer Nature
Serial title, monograph or event: Journal of High Energy Physics
Volume: 2020
Issue: 10
Abstract: A search for new-physics resonances decaying into a lepton and a jet performed by the ATLAS experiment is presented. Scalar leptoquarks pair-produced in pp collisions at s = 13 TeV at the Large Hadron Collider are considered using an integrated luminosity of 139 fb−1, corresponding to the full Run 2 dataset. They are searched for in events with two electrons or two muons and two or more jets, including jets identified as arising from the fragmentation of c- or b-quarks. The observed yield in each channel is consistent with the Standard Model background expectation. Leptoquarks with masses below 1.8 TeV and 1.7 TeV are excluded in the electron and muon channels, respectively, assuming a branching ratio into a charged lepton and a quark of 100%, with minimal dependence on the quark flavour. Upper limits on the aforementioned branching ratio are also given as a function of the leptoquark mass. [Figure not available: see fulltext.]
URI: https://hdl.handle.net/10316/106289
DOI: 10.1007/JHEP10(2020)112
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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