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Search for the electroweak production of supersymmetric particles in root s=8 TeV pp collisions with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
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Number of Authors: 2867
2016 (English)In: Physical Review D. Particles and fields, ISSN 0556-2821, E-ISSN 1089-4918, Vol. 93, no 5, 052002Article in journal (Refereed) Published
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Abstract [en]

The ATLAS experiment has performed extensive searches for the electroweak production of charginos, neutralinos, and staus. This article summarizes and extends the search for electroweak supersymmetry with new analyses targeting scenarios not covered by previously published searches. New searches use vector-boson fusion production, initial-state radiation jets, and low-momentum lepton final states, as well as multivariate analysis techniques to improve the sensitivity to scenarios with small mass splittings and low-production cross sections. Results are based on 20 fb(-1) of proton-proton collision data at root s = 8 TeV recorded with the ATLAS experiment at the Large Hadron Collider. No significant excess beyond Standard Model expectations is observed. The new and existing searches are combined and interpreted in terms of 95% confidence-level exclusion limits in simplified models, where a single production process and decay mode is assumed, as well as within phenomenological supersymmetric models.

Place, publisher, year, edition, pages
American Physical Society , 2016. Vol. 93, no 5, 052002
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:kth:diva-184901DOI: 10.1103/PhysRevD.93.052002ISI: 000371414200001Scopus ID: 2-s2.0-84961216981OAI: oai:DiVA.org:kth-184901DiVA: diva2:917576
Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Note

QC 20160407

Available from: 2016-04-07 Created: 2016-04-07 Last updated: 2016-04-07Bibliographically approved

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