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Phenomenology of Dark Matter fromNon-Minimal Universal Extra Dimensions
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

We give a general introduction to particle physics, and in particular to particlephysics in extra dimensions. Furthermore, we introduce the concept of dark matter(DM) and discuss some suggestions for what it originates from. Next, we calculatethe cross-section for DM annihilation in the framework of non-minimal universalextra dimensions. This process gives mono-energetic gamma-ray lines with energyclose to the DM particle mass. The calculations are performed for two different DMcandidates, U(1)Y-gaugebosonen B1 och den laddningsneutrala SU(2)L-gaugebosonen Z1. MM-kandidaten är alltid den lättaste partikeln inom den betraktade teorin. Störst  tvärsnitt får man när Z1 tas som den lättaste partikeln, och alltså som MM-kandidat, trots att den är tyngre än vad B1 är när den är tagen som teorins lättaste partikel. Anledningen till att tvärsnittet blir större för Z1 är att den har icke fösumbara självväxelverkningarr, vilket gör att många fler Feynmandiagram bidrar.

Place, publisher, year, edition, pages
2011. , 55 p.
Trita-FYS, ISSN 0280-316X ; 2011:09
Keyword [en]
Kaluza–Klein-mörk materia, icke-minimala universella extra dimensioner
URN: urn:nbn:se:kth:diva-31186OAI: diva2:403154
Educational program
Master of Science in Engineering -Engineering Physics
Physics, Chemistry, Mathematics
Available from: 2011-03-18 Created: 2011-03-11 Last updated: 2011-11-09Bibliographically approved

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