A Search For $B-L$ $R$-Parity-Violating Scalar Top Decays in $\sqrt{s} = 8$ TeV $pp$ Collisions With The ATLAS Experiment

This thesis presents a search for direct scalar top pair production where the scalar tops decay via an $R$-parity-violating coupling to a final state with two leptons and two identified $b$-jets. The analysis uses $20.3 \mathrm{fb}^{-1}$ of $\sqrt{s} = 8$ TeV proton-proton collision data collected w...

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Detalles Bibliográficos
Autor principal: Jackson, Brett
Lenguaje:eng
Publicado: 2015
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2050572
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author Jackson, Brett
author_facet Jackson, Brett
author_sort Jackson, Brett
collection CERN
description This thesis presents a search for direct scalar top pair production where the scalar tops decay via an $R$-parity-violating coupling to a final state with two leptons and two identified $b$-jets. The analysis uses $20.3 \mathrm{fb}^{-1}$ of $\sqrt{s} = 8$ TeV proton-proton collision data collected with the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background. Assuming a supersymmetric minimal $B-L$ extension to the Standard Model, limits on the scalar top mass are placed between 500 GeV and 1 TeV with a branching fraction above 20% for the scalar top to decay to an electron or a muon and a $b$-quark.
id cern-2050572
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
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spelling cern-20505722019-09-30T06:29:59Zhttp://cds.cern.ch/record/2050572engJackson, BrettA Search For $B-L$ $R$-Parity-Violating Scalar Top Decays in $\sqrt{s} = 8$ TeV $pp$ Collisions With The ATLAS ExperimentParticle Physics - ExperimentThis thesis presents a search for direct scalar top pair production where the scalar tops decay via an $R$-parity-violating coupling to a final state with two leptons and two identified $b$-jets. The analysis uses $20.3 \mathrm{fb}^{-1}$ of $\sqrt{s} = 8$ TeV proton-proton collision data collected with the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background. Assuming a supersymmetric minimal $B-L$ extension to the Standard Model, limits on the scalar top mass are placed between 500 GeV and 1 TeV with a branching fraction above 20% for the scalar top to decay to an electron or a muon and a $b$-quark.CERN-THESIS-2015-129oai:cds.cern.ch:20505722015-09-08T22:22:00Z
spellingShingle Particle Physics - Experiment
Jackson, Brett
A Search For $B-L$ $R$-Parity-Violating Scalar Top Decays in $\sqrt{s} = 8$ TeV $pp$ Collisions With The ATLAS Experiment
title A Search For $B-L$ $R$-Parity-Violating Scalar Top Decays in $\sqrt{s} = 8$ TeV $pp$ Collisions With The ATLAS Experiment
title_full A Search For $B-L$ $R$-Parity-Violating Scalar Top Decays in $\sqrt{s} = 8$ TeV $pp$ Collisions With The ATLAS Experiment
title_fullStr A Search For $B-L$ $R$-Parity-Violating Scalar Top Decays in $\sqrt{s} = 8$ TeV $pp$ Collisions With The ATLAS Experiment
title_full_unstemmed A Search For $B-L$ $R$-Parity-Violating Scalar Top Decays in $\sqrt{s} = 8$ TeV $pp$ Collisions With The ATLAS Experiment
title_short A Search For $B-L$ $R$-Parity-Violating Scalar Top Decays in $\sqrt{s} = 8$ TeV $pp$ Collisions With The ATLAS Experiment
title_sort search for $b-l$ $r$-parity-violating scalar top decays in $\sqrt{s} = 8$ tev $pp$ collisions with the atlas experiment
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2050572
work_keys_str_mv AT jacksonbrett asearchforblrparityviolatingscalartopdecaysinsqrts8tevppcollisionswiththeatlasexperiment
AT jacksonbrett searchforblrparityviolatingscalartopdecaysinsqrts8tevppcollisionswiththeatlasexperiment

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