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Dark Matter from the Top - Simplified Models of Flavoured Dark Matter in Dark Minimal Flavour Violation

Kast, Simon Florian

Abstract (englisch):

The mystery of dark matter is one of the biggest—if not the biggest—open questions in modern day physics. Dark matter (DM), connecting elements of particle physics and cosmology, poses a diverse, challenging and interesting field of research. In this thesis, we study the phenomenology of simplified models of flavoured dark matter (FDM) beyond Minimal Flavour Violation (MFV). For the first time, two models, coupling a dark matter flavour triplet to the Standard Model (SM) up-quark flavour triplet and to the SM left-handed quark-doublets respectively, are studied in the framework of Dark Minimal Flavour Violation (DMFV). The concept of DMFV has been introduced recently, allowing for a DM-quark coupling matrix of generic flavour structure. Hence, in this framework, the DM-quark coupling matrix constitutes a new source of both flavour and CP violation. We impose constraints from flavour experiments, the observed relic abundance, direct detection searches and new physics searches at colliders on the models, finding a rich phenomenology with an interesting interplay of effects. Among the multitude of effects, we especially want to emphasize the observed lower bound on the dark matter mass, resulting from the combined constraints. ... mehr

Volltext §
DOI: 10.5445/IR/1000076736
Veröffentlicht am 21.11.2017
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Teilchenphysik (TTP)
Publikationstyp Hochschulschrift
Publikationsjahr 2017
Sprache Englisch
Identifikator urn:nbn:de:swb:90-767364
KITopen-ID: 1000076736
Verlag Karlsruher Institut für Technologie (KIT)
Umfang IX, 101 S.
Art der Arbeit Dissertation
Fakultät Fakultät für Physik (PHYSIK)
Institut Institut für Theoretische Teilchenphysik (TTP)
Prüfungsdatum 17.11.2017
Referent/Betreuer Nierste, U.
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