University of Minnesota
School of Physics & Astronomy

Academic Calendar

Friday, June 16th 2017
10:30 am:
Thesis Defense in PAN 210
Speaker: Jiaming Zheng, University of Minnesota
Subject: Dark Matter Models in Non-Supersymmetric SO(10) Unification Theories
This is the public portion of Mr. Zheng's thesis defense. His advisor is Keith Olive.

We studied systematically non-supersymmetric SO(10) models that contain dark matter candidates. The stability of the dark matter particle is guaranteed by a remnant Z_2 subgroup of SO(10). We build models base on various dark matter production mechanisms and check them against several phenomenological constraints, such as the light neutrino masses, direct detection bounds on dark matter candidates and the proton decay lifetime. The requirement of gauge coupling unification offers a severe constraint on the model building. We also demonstrate that the vacuum stability problem of the Standard Model can be evaded by one of our scalar dark matter models.

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