Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in √s=13 TeV pp collisions using the ATLAS detector

ATLAS Collaboration

Research output: Contribution to journalArticlepeer-review

221 Scopus citations

Abstract

A search for the electroweak production of charginos and sleptons decaying into final states with two electrons or muons is presented. The analysis is based on 139 fb- 1 of proton–proton collisions recorded by the ATLAS detector at the Large Hadron Collider at s=13 TeV. Three R-parity-conserving scenarios where the lightest neutralino is the lightest supersymmetric particle are considered: the production of chargino pairs with decays via either W bosons or sleptons, and the direct production of slepton pairs. The analysis is optimised for the first of these scenarios, but the results are also interpreted in the others. No significant deviations from the Standard Model expectations are observed and limits at 95% confidence level are set on the masses of relevant supersymmetric particles in each of the scenarios. For a massless lightest neutralino, masses up to 420 Ge are excluded for the production of the lightest-chargino pairs assuming W-boson-mediated decays and up to 1 TeV for slepton-mediated decays, whereas for slepton-pair production masses up to 700 Ge are excluded assuming three generations of mass-degenerate sleptons.

Original languageEnglish
Article number123
Number of pages33
JournalEuropean Physical Journal C
Volume80
Issue number2
DOIs
StatePublished - 1 Feb 2020

Funding

FundersFunder number
BSF-NSF
CEA-DRF
Cantons of Bern and Geneva
Czech Republic
DNSRCIN2P3-CNRS
EU-ESF
Horizon 2020, and Marie Skłodowska-Curie Actions
IRFU
MES of Russia
MESTD
MIZŠ
MNE
MSMT
MSSR
RGC
VSC CR
Wallenberg Foundation
National Science Foundation
U.S. Department of Energy
Alexander von Humboldt-Stiftung
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Arizona-Nevada Academy of Science
CERN
Glycemic Index Foundation
Natural Sciences and Engineering Research Council of Canada
National Research Council Canada
Canada Foundation for Innovation
Science and Technology Facilities Council1805205, GRIDPP
Science and Technology Facilities Council
Leverhulme Trust
Royal Society
European Research Council
European Cooperation in Science and Technology
Australian Research Council
Neurosurgical Research Foundation
Department of Science and Technology, Ministry of Science and Technology, India
Singapore Eye Research Institute
Helmholtz-Gemeinschaft
Deutsche Forschungsgemeinschaft
Agence Nationale de la Recherche
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Danmarks Grundforskningsfond
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Fundação para a Ciência e a Tecnologia
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
Austrian Science Fund
Generalitat de Catalunya
Comisión Nacional de Investigación Científica y Tecnológica
Agencia Nacional de Promoción Científica y Tecnológica
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Ministerio de Economía y Competitividad
Bundesministerium für Wissenschaft, Forschung und Wirtschaft
General Secretariat for Research and Technology
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Joint Institute for Nuclear Research
Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science
Israel Science Foundation
Instituto Nazionale di Fisica Nucleare
Narodowe Centrum Nauki
Javna Agencija za Raziskovalno Dejavnost RS
Ministerstwo Nauki i Szkolnictwa Wyższego
Ministry of Science and Technology, Taiwan
Centre National pour la Recherche Scientifique et Technique
British Columbia Knowledge Development Fund
European Regional Development Fund
Council on grants of the President of the Russian Federation
National Research Center "Kurchatov Institute"
Institutul de Fizică Atomică

    Keywords

    • Supersymmetry
    • Electroweak interactions
    • LARGE Hadron Collider
    • SFERMION
    • PROTON-proton interactions
    • Confidence intervals
    • STANDARD deviations

    Fingerprint

    Dive into the research topics of 'Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in √s=13 TeV pp collisions using the ATLAS detector'. Together they form a unique fingerprint.

    Cite this