A search for $B-L$ $R$-Parity violating scalar top decays in $\sqrt{s} = 8$ TeV $pp$ collisions with the ATLAS experiment

A search is presented 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 $\sqrt{s} = 8~\mathrm{TeV}$ proton-proton collision data collected...

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Detalles Bibliográficos
Autor principal: The ATLAS collaboration
Lenguaje:eng
Publicado: 2015
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2002885
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author The ATLAS collaboration
author_facet The ATLAS collaboration
author_sort The ATLAS collaboration
collection CERN
description A search is presented 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 $\sqrt{s} = 8~\mathrm{TeV}$ 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 $500~\mathrm{GeV}$ and $1~\mathrm{TeV}$ with a branching fraction above 20% for the scalar top to decay to an electron or a muon and a $b$-quark.
id cern-2002885
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
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spelling cern-20028852021-04-18T19:38:35Zhttp://cds.cern.ch/record/2002885engThe ATLAS collaborationA search for $B-L$ $R$-Parity violating scalar top decays in $\sqrt{s} = 8$ TeV $pp$ collisions with the ATLAS experimentParticle Physics - ExperimentA search is presented 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 $\sqrt{s} = 8~\mathrm{TeV}$ 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 $500~\mathrm{GeV}$ and $1~\mathrm{TeV}$ with a branching fraction above 20% for the scalar top to decay to an electron or a muon and a $b$-quark.ATLAS-CONF-2015-015oai:cds.cern.ch:20028852015-03-24
spellingShingle Particle Physics - Experiment
The ATLAS collaboration
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/2002885
work_keys_str_mv AT theatlascollaboration asearchforblrparityviolatingscalartopdecaysinsqrts8tevppcollisionswiththeatlasexperiment
AT theatlascollaboration searchforblrparityviolatingscalartopdecaysinsqrts8tevppcollisionswiththeatlasexperiment

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