Asymmetry Between Matter and Antimatter in the Universe

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Mazhari, Mohammad | 2013

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 44510 (04)
University: Sharif University of Technology
Department: Physics
Advisor(s): Golshani, Mehdi
Abstract:
Although the origin of matter-antimatter asymmetry remains unknown, continuing advances in theory and improved experimental limits have ruled out some scenarios for baryogenesis: for example, the sphaleron baryogenesis at the electroweak phase transition in the standard model. In this thesis, we give an introduction to some of the ideas and attempts to understand the origin of the matte -antimatter asymmetry of the universe. After the discussion of some basic issues of cosmology and particle theory, the scenarios of electroweak baryogenesis, GUT baryogenesis, and leptogenesis are outlined
Keywords:
Asymmetry Matter and Antimatter ; Baryogensis ; Electroweak ; Grand Unified Theory (GUT) ; Leptogensis

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