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A search for top squarks with R-parity-violating decays to all-hadronic final states with the ATLAS detector in root s=8 TeV proton-proton collisions
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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Number of Authors: 2851
2016 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 6, 067Article in journal (Refereed) PublishedText
Abstract [en]

A search for the pair production of top squarks, each with R-parity-violating decays into two Standard Model quarks, is performed using 17.4 fb(-1) of root s = 8 TeV proton-proton collision data recorded by the ATLAS experiment at the LITC. Each top squark is assumed to decay to a b- and an 8-quark, leading to four quarks in the final state. Background discrimination is achieved with the use of b-tagging and selections on the mass and substructure of large-radius jets, providing sensitivity to top squark masses as low as 100 GeV. No evidence of an excess beyond the Standard Model background prediction is observed and top squalls decaying to bs are excluded for top squark masses in the range 100 <= m((t) over tilde) <= 315 GeV at 95% confidence level.

Place, publisher, year, edition, pages
American Physical Society , 2016. no 6, 067
Keyword [en]
Hadron-Hadron scattering (experiments)
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-190099DOI: 10.1007/JHEP06(2016)067ISI: 000378819900002ScopusID: 2-s2.0-84977606874OAI: diva2:951323
Swedish Research Council

QC 20160721

Available from: 2016-08-08 Created: 2016-08-08 Last updated: 2016-08-08Bibliographically approved

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Lund-Jensen, BengtSidebo, EdvinStrandberg, Jonas
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