A search for stable massive particles carrying electric charges in the range of 2e to 6e in proton-proton collisions at √s = 7 TeV recorded with the ATLAS detector at the LHC
A search for stable massive particles carrying electric charges in the range of 2e to 6e in proton-proton collisions at √s = 7 TeV recorded with the ATLAS detector at the LHC
dc.contributor.advisor | Desch, Klaus | |
dc.contributor.author | Zimmermann, Simone | |
dc.date.accessioned | 2020-04-18T23:27:33Z | |
dc.date.available | 2020-04-18T23:27:33Z | |
dc.date.issued | 02.09.2013 | |
dc.identifier.uri | https://hdl.handle.net/20.500.11811/5747 | |
dc.description.abstract | This dissertation presents a search for long-lived, multi-charged particles using the ATLAS detector at the LHC. Motivation for this search arose from an unexploited search regime at ATLAS of stable massive particles with electric charges of |q| = 2e to |q| = 5e. Additional motivation can be found in several beyond the Standard Model physics theories. Proton-proton collisions recorded during the 2011 LHC running at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of 4.4 fb−1, are examined in a signature-based analysis. The search seeks out charged particle tracks exhibiting anomalously high ionization consistent with stable massive particles with electric charges in the range from |q| = 2e to |q| = 6e. For this search, new variables of specific energy loss per path length dE/dx are used in the candidate selection. One of these variables, the TRT dE/dx, is developed in the course of this thesis and is described in detail. No excess is observed with respect to the prediction of Standard Model processes. The 95% C.L. upper cross section limits are also interpreted as mass exclusion limits for a simplified Drell-Yan production model. | |
dc.language.iso | eng | |
dc.rights | In Copyright | |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | |
dc.subject | Experimentelle Teilchenphysik | |
dc.subject | ATLAS | |
dc.subject | LHC | |
dc.subject | Stabile schwere Teilchen | |
dc.subject | Mehrfachladung | |
dc.subject | Experimental Particle Physics | |
dc.subject | Stable massive particles | |
dc.subject | Multiple charges | |
dc.subject.ddc | 530 Physik | |
dc.title | A search for stable massive particles carrying electric charges in the range of 2e to 6e in proton-proton collisions at √s = 7 TeV recorded with the ATLAS detector at the LHC | |
dc.type | Dissertation oder Habilitation | |
dc.publisher.name | Universitäts- und Landesbibliothek Bonn | |
dc.publisher.location | Bonn | |
dc.rights.accessRights | openAccess | |
dc.identifier.urn | https://nbn-resolving.org/urn:nbn:de:hbz:5n-33232 | |
ulbbn.pubtype | Erstveröffentlichung | |
ulbbnediss.affiliation.name | Rheinische Friedrich-Wilhelms-Universität Bonn | |
ulbbnediss.affiliation.location | Bonn | |
ulbbnediss.thesis.level | Dissertation | |
ulbbnediss.dissID | 3323 | |
ulbbnediss.date.accepted | 11.06.2013 | |
ulbbnediss.fakultaet | Mathematisch-Naturwissenschaftliche Fakultät | |
dc.contributor.coReferee | Brock, Ian C. |
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