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A Strategy to Detect and Identify Gluino R-hadrons with the ATLAS Experiment at the LHC
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
Stockholm University, Faculty of Science, Department of Physics.
2005 (English)In: ATL-COM-PHYS, no 065Article in journal (Refereed) Published
Abstract [en]

The potential of the ATLAS detector at the LHC to detect and quantify the production of gluino R-hadrons is investigated. Using QCD-based models and a full detector simulation, a search strategy is outlined which uses the property that gluino R-hadrons can change the sign of their charge when propagating through matter. By comparing charged tracks in the Inner and Muon tracking systems, it is shown that this observable can be used to both detect and identify gluino R-hadrons of masses up to around 1 TeV in early LHC running

Place, publisher, year, edition, pages
Geneva: CERN , 2005. no 065
National Category
Accelerator Physics and Instrumentation
Identifiers
URN: urn:nbn:se:su:diva-24803OAI: oai:DiVA.org:su-24803DiVA: diva2:198335
Note

Part of urn:nbn:se:su:diva-746

Available from: 2005-11-24 Created: 2005-11-24 Last updated: 2014-10-16Bibliographically approved
In thesis
1. Construction and Testing of the TileCal Digitizer and an Evaluation of the Discovery Potential for R-Hadrons at the ATLAS Detector at the LHC
Open this publication in new window or tab >>Construction and Testing of the TileCal Digitizer and an Evaluation of the Discovery Potential for R-Hadrons at the ATLAS Detector at the LHC
2005 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This thesis comprises two parts. In the first part an overview is given of the Standard Model, Supersymmetry and R-hadrons. R-hadrons are predicted within the framework of the Split-SUSY theory, in which the gluino can have a sufficiently long lifetime to hadronise into so-called R-hadrons. These will then propagate through the ATLAS detector as (meta)stable particles. The R-hadrons, which interact strongly, have the property of changing electric charge in interactions as they move through matter. In this thesis a strategy to search for R-hadrons with the ATLAS detcector is developed.

The second part describes the ATLAS detector and the developement of the digitizer system of the ATLAS hadronic calorimeter. The digitizer system is the digitial readout system, in which data is read out from the detector to data buffers via an optical link. In the LHC environment, the operation of radiation-hard circuitry is essential. Therefore a quality control program was used to control that the design conforms to the requirements of radiation tolerance. An important part of the work was to test the devices to study their functionality and properties. This work is described in this thesis.

Place, publisher, year, edition, pages
Stockholm: Fysikum, 2005. 66 p.
National Category
Subatomic Physics
Identifiers
urn:nbn:se:su:diva-746 (URN)91-7155-180-1 (ISBN)
Public defence
2005-12-16, sal FB42, AlbaNova universitetscenter, Roslagstullsbacken 21, Stockholm, 10:15
Opponent
Supervisors
Available from: 2005-11-24 Created: 2005-11-24 Last updated: 2014-10-02Bibliographically approved

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