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Search for Supersymmetry at CMS in Proton-Proton Collisions with Center-of-Mass Energy of 13TeV in the Single-Lepton Final State Using the Sum of Masses of Large-Radius Jets

This dissertation describes a search for supersymmetry in 35.9 fb –1 of proton-proton collisions with sqrt(s) = 13 TeV produced by the LHC and recorded by the CMS experiment. The search targets events having a final state with a single lepton, high jet multiplicity, at least one b-tagged jet, and mi...

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Detalles Bibliográficos
Autor principal: Dishaw, Adam Leo
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:http://cds.cern.ch/record/2287140
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author Dishaw, Adam Leo
author_facet Dishaw, Adam Leo
author_sort Dishaw, Adam Leo
collection CERN
description This dissertation describes a search for supersymmetry in 35.9 fb –1 of proton-proton collisions with sqrt(s) = 13 TeV produced by the LHC and recorded by the CMS experiment. The search targets events having a final state with a single lepton, high jet multiplicity, at least one b-tagged jet, and missing transverse momentum. Standard model background yields are estimated using the sum of the masses of large-radius jets in each event. The observed yields are consistent with the estimated background yields. This consistency is interpreted in term of simplified models of supersymmetry in which gluinos are pair produced and each subsequently decay into a top quark, anti-top quark, and neutralino via an intermediate on- or off-shell stop squark. Assuming a 100% branching fraction for this decay chain, gluino masses up to approximately 1.9 TeV are excluded at a 95% confidence level for neutralino masses below 1 TeV. Similarly, neutralino masses up to approximately 1175 GeV are excluded when the gluino mass is 1.7 TeV.
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institution Organización Europea para la Investigación Nuclear
language eng
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spelling oai-inspirehep.net-16284572019-09-30T06:29:59Zhttp://cds.cern.ch/record/2287140engDishaw, Adam LeoSearch for Supersymmetry at CMS in Proton-Proton Collisions with Center-of-Mass Energy of 13TeV in the Single-Lepton Final State Using the Sum of Masses of Large-Radius JetsParticle Physics - ExperimentThis dissertation describes a search for supersymmetry in 35.9 fb –1 of proton-proton collisions with sqrt(s) = 13 TeV produced by the LHC and recorded by the CMS experiment. The search targets events having a final state with a single lepton, high jet multiplicity, at least one b-tagged jet, and missing transverse momentum. Standard model background yields are estimated using the sum of the masses of large-radius jets in each event. The observed yields are consistent with the estimated background yields. This consistency is interpreted in term of simplified models of supersymmetry in which gluinos are pair produced and each subsequently decay into a top quark, anti-top quark, and neutralino via an intermediate on- or off-shell stop squark. Assuming a 100% branching fraction for this decay chain, gluino masses up to approximately 1.9 TeV are excluded at a 95% confidence level for neutralino masses below 1 TeV. Similarly, neutralino masses up to approximately 1175 GeV are excluded when the gluino mass is 1.7 TeV.oai:inspirehep.net:16284572017-10-05T05:10:07Z
spellingShingle Particle Physics - Experiment
Dishaw, Adam Leo
Search for Supersymmetry at CMS in Proton-Proton Collisions with Center-of-Mass Energy of 13TeV in the Single-Lepton Final State Using the Sum of Masses of Large-Radius Jets
title Search for Supersymmetry at CMS in Proton-Proton Collisions with Center-of-Mass Energy of 13TeV in the Single-Lepton Final State Using the Sum of Masses of Large-Radius Jets
title_full Search for Supersymmetry at CMS in Proton-Proton Collisions with Center-of-Mass Energy of 13TeV in the Single-Lepton Final State Using the Sum of Masses of Large-Radius Jets
title_fullStr Search for Supersymmetry at CMS in Proton-Proton Collisions with Center-of-Mass Energy of 13TeV in the Single-Lepton Final State Using the Sum of Masses of Large-Radius Jets
title_full_unstemmed Search for Supersymmetry at CMS in Proton-Proton Collisions with Center-of-Mass Energy of 13TeV in the Single-Lepton Final State Using the Sum of Masses of Large-Radius Jets
title_short Search for Supersymmetry at CMS in Proton-Proton Collisions with Center-of-Mass Energy of 13TeV in the Single-Lepton Final State Using the Sum of Masses of Large-Radius Jets
title_sort search for supersymmetry at cms in proton-proton collisions with center-of-mass energy of 13tev in the single-lepton final state using the sum of masses of large-radius jets
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2287140
work_keys_str_mv AT dishawadamleo searchforsupersymmetryatcmsinprotonprotoncollisionswithcenterofmassenergyof13tevinthesingleleptonfinalstateusingthesumofmassesoflargeradiusjets