Searches for electroweak production of supersymmetric particles with compressed mass spectra in √s=13 TeV pp collisions with the ATLAS detector : = Searches for electroweak production of supersymmetric particles with compressed mass spectra in [square root]s=13 TeV pp collisions with the ATLAS detector

Abstract: This paper presents results of searches for the electroweak production of supersymmetric particles in models with compressed mass spectra. The searches use 139  fb−1 of √ =13  TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider. Events with missing transverse momentum and two same-flavor, oppositely charged, low-transverse-momentum leptons are selected, and are further categorized by the presence of hadronic activity from initial-state radiation or a topology compatible with vector-boson fusion processes. The data are found to be consistent with predictions from the Standard Model. The results are interpreted using simplified models of -parity-conserving supersymmetry in which the lightest supersymmetric partner is a neutralino with a mass similar to the lightest chargino, the second-to-lightest neutralino, or the slepton. Lower limits on the masses of charginos in different simplified models range from 193 to 240 GeV for moderate mass splittings, and extend down to mass splittings of 1.5 to 2.4 GeV at the LEP chargino bounds (92.4 GeV). Similar lower limits on degenerate light-flavor sleptons extend up to masses of 251 GeV and down to mass splittings of 550 MeV. Constraints on vector-boson fusion production of electroweak SUSY states are also presented

Angaben zum Objekt

• Weitere Titel: Searches for electroweak production of supersymmetric particles with compressed mass spectra in [square root]s=13 TeV pp collisions with the ATLAS detector
• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch
• Anmerkungen: Physical review. - 101, 5 (2020) , 052005, ISSN: 2470-0029

Beteiligte, Orts- und Zeitangaben

• Ereignis: Veröffentlichung
• (wo): Freiburg
• (wer): Universität
• (wann): 2024
• Urheber: ATLAS Collaboration CERN, [Study Group] ; Becherer, Fabian ; Becker, Anne Kathrin ; Bührer, Felix ; Coniavitis, Elias ; García-Argos, Carlos ; Gargiulo, Simona ; Gonella, Giulia ; Gugel, Ralf ; Guth, Manuel ; Heidegger, Kim K. ; Heinemann, Beate ; Herten, Gregor ; Hirose, Shigeki ; Hohn, David ; Hönig, Jan Cedric ; Jakobs, Karl ; Javůrková, Martina ; Jenni, Peter ; Jiggins, Stephen ; Klapdor-Kleingrothaus, Thorwald ; Knue, Andrea ; Köneke, Karsten ; Kuprash, Oleg ; Landgraf, Ulrich ; Lösle, Alena ; Lüdtke, Christian ; Magerl, Veronika ; Megy, Théo ; Mogg, Philipp ; Nagel, Martin ; Parzefall, Ulrich ; Rosbach, Kilian ; Rühr, Frederik ; Rúriková, Zuzana ; Sammel, Dirk ; Sauerburger, Frank ; Schleicher, Katharina E. ; Schnoor, Ulrike ; Scholer, Patrick ; Schumacher, Markus ; Sperlich, Dennis ; Weiser, Christian ; Wiik-Fuchs, Liv ; Winter, Benedict T. ; Wollrath, Julian ; Zimmermann, Stephanie ; et al
• Beteiligte Personen und Organisationen: Experimentelle Teilchenphysik

Weitere Informationen

• DOI: 10.1103/physrevd.101.052005
• URN: urn:nbn:de:bsz:25-freidok-2599397
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 15.08.2025, 07:26 MESZ