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Search for B - L R-parity-violating top squarks in root s=13 TeV pp collisions with the ATLAS experiment
Université Mohamed Premier, Faculté des Sciences, Oujda; LPTPM, Oujda.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.ORCID iD: 0000-0002-1253-8583
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics. Georg-August-Universität, II Physikalisches Institut, Göttingen.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
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Number of Authors: 28912018 (English)In: Physical Review D. Particles and fields, ISSN 0556-2821, E-ISSN 1089-4918, Vol. 97, article id 032003Article in journal (Refereed) Published
Abstract [en]

A search is presented for the direct pair production of the stop, the supersymmetric partner of the top quark, that decays through an R-parity-violating coupling to a final state with two leptons and two jets, at least one of which is identified as a b-jet. The data set corresponds to an integrated luminosity of 36.1 fb(-1) of proton-proton collisions at a center-of-mass energy of root s = 13 TeV, collected in 2015 and 2016 by the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background, and exclusion limits are set on stop pair production at a 95% confidence level. Lower limits on the stop mass are set between 600 GeV and 1.5 TeV for branching ratios above 10% for decays to an electron or muon and a b-quark.

Place, publisher, year, edition, pages
2018. Vol. 97, article id 032003
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-347243DOI: 10.1103/PhysRevD.97.032003ISI: 000424190800001OAI: oai:DiVA.org:uu-347243DiVA, id: diva2:1193886
Funder
Swedish Research CouncilEU, European Research CouncilEU, FP7, Seventh Framework ProgrammeEU, Horizon 2020German Research Foundation (DFG)European Science Foundation (ESF)
Note

ATLAS Collaboration, for complete list of authors see https://doi.org/10.1103/PhysRevD.97.032003

Available from: 2018-03-28 Created: 2018-03-28 Last updated: 2018-06-29Bibliographically approved

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Bergeås, Elin KuutmannBokan, PetarBrenner, RichardEkelöf, TordEllert, MattiasFerrari, ArnaudGradin, P.O. JoakimIsacson, Max F.Mårtensson, Mikael U.F.Öhman, HenrikRangel-Smith, CamillaSales De Bruin, Pedro H.

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Bergeås, Elin KuutmannBokan, PetarBrenner, RichardEkelöf, TordEllert, MattiasFerrari, ArnaudGradin, P.O. JoakimIsacson, Max F.Mårtensson, Mikael U.F.Öhman, HenrikRangel-Smith, CamillaSales De Bruin, Pedro H.
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High Energy Physics
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Physical Review D. Particles and fields
Subatomic Physics

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