Some Topics in Grand Unified Models and the Cosmological Baryon Asymmetry

Author: Reiss, David Benjamin

Year: 1981

Degree: Dissertation (Ph.D.)

Advisor: Frautschi, Steven C.

Committee Member: Unknown, Unknown

Option: Physics

DOI: 10.7907/7629-m351

Abstract

In part I of this thesis some of the parameters relevant to the production of a cosmological baryon number asymmetry are considered in the context of grand unified models. General expressions for the average baryon number generated in the free decays of bosons are derived . The CP violation necessary for the generation of a baryon excess is discussed for a variety of SU(5) models. The kinematics of baryon number production in an illustrative SO(10) model is discussed in detail. In part II a viable SO(10) model is constructed which reproduces the phenomenological fermion mass and mixing angle values. A detailed discussion of the beta function for this model is presented. This analysis includes the effects of scalars.

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