@misc{10481/68714,
year = {2021},
month = {4},
url = {http://hdl.handle.net/10481/68714},
abstract = {The results of a search for direct pair production of top squarks and for dark matter in events with two opposite-charge leptons (electrons or muons), jets and missing transverse momentum are reported, using 139 fb(-1) of integrated luminosity from proton-proton collisions at root s = 13 TeV, collected by the ATLAS detector at the Large Hadron Collider during Run 2 (2015-2018). This search considers the pair production of top squarks and is sensitive across a wide range of mass differences between the top squark and the lightest neutralino. Additionally, spin-0 mediator dark-matter models are considered, in which the mediator is produced in association with a pair of top quarks. The mediator subsequently decays to a pair of dark-matter particles. No significant excess of events is observed above the Standard Model background, and limits are set at 95% confidence level. The results exclude top squark masses up to about 1 TeV, and masses of the lightest neutralino up to about 500 GeV. Limits on dark-matter production are set for scalar (pseudoscalar) mediator masses up to about 250 (300) GeV.},
organization = {ANPCyT},
organization = {YerPhI, Armenia},
organization = {Australian Research Council},
organization = {BMWFW, Austria},
organization = {Austrian Science Fund (FWF)},
organization = {Azerbaijan National Academy of Sciences (ANAS)},
organization = {SSTC, Belarus},
organization = {Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ)},
organization = {Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)},
organization = {Natural Sciences and Engineering Research Council of Canada (NSERC)},
organization = {NRC, Canada},
organization = {Canada Foundation for Innovation},
organization = {CERN},
organization = {ANID, Chile},
organization = {Chinese Academy of Sciences},
organization = {Ministry of Science and Technology, China},
organization = {National Natural Science Foundation of China (NSFC)},
organization = {Departamento Administrativo de Ciencia, Tecnologia e Innovacion Colciencias},
organization = {Ministry of Education, Youth & Sports - Czech Republic},
organization = {Czech Republic Government

 
Czech Republic Government

 
Czech Republic Government},
organization = {DNRF, Denmark},
organization = {Danish Natural Science Research Council},
organization = {Centre National de la Recherche Scientifique (CNRS)},
organization = {CEA-DRF/IRFU, France},
organization = {SRNSFG, Georgia},
organization = {Federal Ministry of Education & Research (BMBF)},
organization = {HGF , Germany},
organization = {Max Planck Society},
organization = {Greek Ministry of Development-GSRT},
organization = {RGC, China},
organization = {Hong Kong SAR, China},
organization = {Israel Science Foundation},
organization = {Benoziyo Center, Israel},
organization = {Istituto Nazionale di Fisica Nucleare (INFN)},
organization = {Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)

 
Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)},
organization = {Japan Society for the Promotion of Science},
organization = {CNRST, Morocco},
organization = {Netherlands Organization for Scientific Research (NWO)},
organization = {Netherlands Government},
organization = {RCN, Norway},
organization = {Ministry of Science and Higher Education, Poland},
organization = {NCN, Poland},
organization = {Portuguese Foundation for Science and Technology

European Commission},
organization = {MNE/IFA, Romania},
organization = {JINR},
organization = {Russian Federation},
organization = {NRC KI, Russian Federation},
organization = {MESTD, Serbia},
organization = {MSSR, Slovakia},
organization = {Slovenian Research Agency - Slovenia},
organization = {MIZS, Slovenia},
organization = {DST/NRF, South Africa},
organization = {Spanish Government},
organization = {SRC, Sweden},
organization = {Wallenberg Foundation, Sweden},
organization = {SERI, Switzerland},
organization = {Swiss National Science Foundation (SNSF)},
organization = {Canton of Bern, Switzerland},
organization = {Ministry of Science and Technology, Taiwan},
organization = {Ministry of Energy & Natural Resources - Turkey},
organization = {UK Research & Innovation (UKRI)},
organization = {Science & Technology Facilities Council (STFC)},
organization = {United States Department of Energy (DOE)},
organization = {National Science Foundation (NSF)},
organization = {BCKDF, Canada},
organization = {CANARIE, Canada},
organization = {Compute Canada, Canada},
organization = {CRC, Canada},
organization = {IVADO, Calnada},
organization = {Beijing Municipal Science & Technology Commission},
organization = {COST, European Union},
organization = {European Research Council (ERC)},
organization = {ERDF, European Union},
organization = {Marie Sklodowska-Curie Actions, European Union},
organization = {French National Research Agency (ANR)},
organization = {French National Research Agency (ANR)},
organization = {French National Research Agency (ANR)},
organization = {German Research Foundation (DFG)},
organization = {Alexander von Humboldt Foundation},
organization = {Herakleitos programme},
organization = {Aristeia programme},
organization = {EU-ESF, Greece},
organization = {Greek NSRF, Greece},
organization = {BSF-NSF, Israel},
organization = {German-Israeli Foundation for Scientific Research and Development},
organization = {La Caixa Banking Foundation, Spain},
organization = {CERCA Programme Generalitat de Catalunya, Spain},
organization = {PROMETEO Programme Generalitat Valenciana, Spain},
organization = {GenT Programme Generalitat Valenciana, Spain},
organization = {Goran Gustafssons Stiftelse, Sweden},
organization = {Royal Society of London},
organization = {Leverhulme Trust},
organization = {Canton of Geneva, Switzerland},
organization = {Horizon 2020, European Union},
organization = {Thales programme},
publisher = {Springer},
keywords = {Hadron-Hadron scattering (experiments)},
title = {Search for new phenomena in events with two opposite-charge leptons, jets and missing transverse momentum in pp collisions at s√ = 13 TeV with the ATLAS detector},
doi = {10.1007/JHEP04(2021)165},
author = {Aad, G. and Aguilar Saavedra, Juan Antonio and Atlas Collaboration},
}