Bergen Open Research Archive

Two Higgs Doublets plus One Dark Matter Singlet

Bergen Open Research Archive

Show simple item record Tochin, Alexey eng 2011-05-02T11:27:22Z 2011-05-02T11:27:22Z 2010-08-01 eng 2010-09-01 eng
dc.description.abstract In this thesis an extension of the 2HDM (see chapter 1) is explored. The extension admits an extra inert singlet which is a dark matter candidate. Before the exploration a large part of the thesis (chapter 2) is an overview of dark matter theory that includes the evidence of dark matter existence, list of the most popular candidates, information of experimental detection and others. The phenomenology of the relic abundance is discussed in detail. Scanning over parameters of the considered model the abundance of the dark matter is constrained in agreement with WMAP data. Imposing all relevant collider and theoretical constraints the allowed parameter space for which dark matter is appropriate will be determined. It is done using two methods. The first one is to draw histograms of allowed regions with some parameters fixed and others are arbitrary (chapter 3). The second method is to draw scatter plots where all parameters are random (chapter 4). The important case of the theory with quadratic divergency cancellation will be discussed in chapter 4 together with the usual one. Some attempts to use different numerical methods (appendices A and B) of searching for such allowed regions in the parametric space are presented. But it is rather a training of them than an active application or at least an attempt to find any new method of the calculation optimization. en_US
dc.format.extent 933430 bytes eng
dc.format.mimetype application/pdf eng
dc.language.iso eng eng
dc.publisher The University of Bergen en
dc.rights Copyright the author. All rights reserved eng
dc.title Two Higgs Doublets plus One Dark Matter Singlet en_US
dc.type Master thesis eng Master i Fysikk nob
dc.type.course PHYS399 eng
dc.subject.nsi VDP::Mathematics and natural science: 400::Physics: 430 eng
dc.rightsHolder The author eng
dc.subject.archivecode Mastergrad eng
dc.subject.nus 752199 eng
dc.type.program MAMN-PHYS eng

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