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Characterization of the Spin of Dark Matter at the LHC
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
2019 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The potential for characterizing the spin and mass of dark matter at the Large Hadron Collider (LHC) given a 5 sigma confidence level discovery has been studied. The search for dark matter is one of the big open question in particle physics as observations predict 84 percent of the matter in the universe to be dark matter, however no detection has been made. In this study two production channels at the LHC of weakly interacting massive particles with different spin have been studied in the framework of a simplified model. The processes if detected have the signature of a mono-jet and missing transverse energy. The assumption made is that the dark matter is a scalar or a Dirac fermion particle and interacts with the top quark and a Beyond the Standard Model color charged mediator via a loop process. The considered mediators are a scalar top partner and a fermionic top partner. The results from recasting conclude that in a narrow region in the mass-mass-plane for the dark matter and the mediator a search is adequate and given a discovery characterization of the spin and mass is possible.

Place, publisher, year, edition, pages
2019.
Series
UPTEC F, ISSN 1401-5757 ; 19036
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-388421OAI: oai:DiVA.org:uu-388421DiVA, id: diva2:1333064
Educational program
Master Programme in Engineering Physics
Supervisors
Examiners
Available from: 2019-07-01 Created: 2019-06-29 Last updated: 2019-07-01Bibliographically approved

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CiteExportLink to record
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  • apa
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Output format
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