Searches for electroweak production of supersymmetric particles with compressed mass spectra in ffiffi s p =13 TeV pp collisions with the ATLAS detector

Vista sencilla de ítem
dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbbott, D.C
dc.contributor.authorAbed, Abud A
dc.contributor.authorAbeling, K
dc.contributor.authorAbhayasinghe, D.K
dc.contributor.authorAbidi, S.H
dc.contributor.authorAbouzeid, O.S.
dc.contributor.authorAbraham, N.L
dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbreu, H.
dc.contributor.authorAbulaiti, Y.
dc.date.accessioned2021-09-20T20:00:22Z
dc.date.available2021-09-20T20:00:22Z
dc.date.issued2020-03
dc.description.abstractThis 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 s=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 R-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. © 2020 CERNes
dc.description.sponsorshipIndexación: Scopuses
dc.identifier.citationPhysical Review DOpen Access Volume 101, Issue 51 March 2020 Article number 052005es
dc.identifier.issn24700010
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/20334
dc.language.isoenes
dc.publisherAmerican Physical Societyes
dc.titleSearches for electroweak production of supersymmetric particles with compressed mass spectra in ffiffi s p =13 TeV pp collisions with the ATLAS detectores
dc.typeArtículoes
Archivos
Bloque original
Mostrando 1 - 1 de 1
Miniatura
Nombre:
G.Aad_ Search for long-lived neutral particles produced in pp collisions.pdf
Tamaño:
732.24 KB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO COMPLETO EN INGLÉS
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar
Colecciones
FCE - Artículos de Revista