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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.advisorDesch, Klaus
dc.contributor.authorZimmermann, Simone
dc.date.accessioned2020-04-18T23:27:33Z
dc.date.available2020-04-18T23:27:33Z
dc.date.issued02.09.2013
dc.identifier.urihttp://hdl.handle.net/20.500.11811/5747
dc.description.abstractThis 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.isoeng
dc.rightsIn Copyright
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectExperimentelle Teilchenphysik
dc.subjectATLAS
dc.subjectLHC
dc.subjectStabile schwere Teilchen
dc.subjectMehrfachladung
dc.subjectExperimental Particle Physics
dc.subjectStable massive particles
dc.subjectMultiple charges
dc.subject.ddc530 Physik
dc.titleA 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.typeDissertation oder Habilitation
dc.publisher.nameUniversitäts- und Landesbibliothek Bonn
dc.publisher.locationBonn
dc.rights.accessRightsopenAccess
dc.identifier.urnhttps://nbn-resolving.org/urn:nbn:de:hbz:5n-33232
ulbbn.pubtypeErstveröffentlichung
ulbbnediss.affiliation.nameRheinische Friedrich-Wilhelms-Universität Bonn
ulbbnediss.affiliation.locationBonn
ulbbnediss.thesis.levelDissertation
ulbbnediss.dissID3323
ulbbnediss.date.accepted11.06.2013
ulbbnediss.fakultaetMathematisch-Naturwissenschaftliche Fakultät
dc.contributor.coRefereeBrock, Ian C.


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