Author: Raphael GaleaPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A Search for R-parity Violating Supersymmetric Particles at HERA Using the ZEUS Detector
Author: Raphael GaleaA Search for R-parity Violating Supersymmetric Particles at HERA Using the ZEUS Detector
Author: Raphael GaleaSearch for Gaugino Production in R-parity Violating Supersymmetry with the ZEUS Detector at HERA
Author: Chi Nhan NguyenSearch for Squark Production in R-Parity Violating Supersymmetry at HERA.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This thesis describes a search for squarks in supersymmetric models which allow R-parity violation. Electron-proton and positron-proton collisions taken at a centre of mass energy of 320 GeV have been investigated using the H1 detector at HERA. No deviation from the Standard Model has been found and exclusion limits in various supersymmetric models have been derived.
A Search for Lepton Flavor Violation Using the ZEUS Detector at HERA
Author: Mark G. Van HookPublisher:
ISBN:
Category : Collisions (Nuclear physics)
Languages : en
Pages : 300
Book Description
Search for Gravitinos in R-parity Violating Supersymmetry at HERA
Author: Claus HornSearch for Stop Production in R-parity-violating Supersymmetry at HERA
Author: Performance of the ZEUS Second Level Tracking Trigger and Studies of R-parity Violating Supersymmetry at HERA
Author: Jonathan Mark ButterworthPublisher:
ISBN:
Category : Particles (Nuclear physics)
Languages : en
Pages : 384
Book Description
Searches for R-parity-violating Supersymmetry in Pp Collisions at Sqrt(s)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Results are presented from searches for R-parity-violating supersymmetry in events produced in pp collisions at sqrt(s)=8 TeV at the LHC. Final states with 0, 1, 2, or multiple leptons are considered independently. The analysis is performed on data collected by the CMS experiment corresponding to an integrated luminosity of 19.5 inverse femtobarns. No excesses of events above the standard model expectations are observed, and 95% confidence level limits are set on supersymmetric particle masses and production cross sections. The results are interpreted in models featuring R-parity-violating decays of the lightest supersymmetric particle, which in the studied scenarios can be either the gluino, a bottom squark, or a neutralino. In a gluino pair production model with baryon number violation, gluinos with a mass less than 0.98 and 1.03 TeV are excluded, by analyses in a fully hadronic and one-lepton final state, respectively. An analysis in a dilepton final state is used to exclude bottom squarks with masses less than 307 GeV in a model considering bottom squark pair production. Multilepton final states are considered in the context of either strong or electroweak production of superpartners, and are used to set limits on the masses of the lightest supersymmetric particles. These limits range from 300 to 900 GeV in models with leptonic and up to approximately 700 GeV in models with semileptonic R-parity-violating couplings.
Search for R-parity Violating Supersymmetry in Multilepton Final States Using the ATLAS Detector
Author: Matthew Henry KleinPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This thesis presents a search for R-parity violating supersymmetry at sqrt(s)=13 TeV, using approximately 13.3 fb-1 of data collected by ATLAS in 2015 and the first half of 2016. Events are required to contain at least four leptons (electrons or muons only) that are not the product of a Z boson decay, and this requirement results in a low Standard Model background and a high sensitivity to various physics models beyond the Standard Model. No significant deviations from the Standard Model are observed in data, and results are used to set upper limits on the event yields from processes beyond the Standard Model. In a simplified model of chargino production with indirect R-parity violating decays, limits are extended by approximately 400 GeV relative to the Run 1 search, excluding chargino masses below 1.1 TeV.