SO(10) Grand Unification from M theory on a G2 manifold

4th Symposium on Prospects in the Physics of Discrete Symmetries

Romão, Miguel Crispim^1

School of Physics and Astronomy, University of Southampton, Southampton

SO17 1BJ, United Kingdom^1

关键词: Discrete symmetry;    Extra dimensions;    Gauge group;    Grand unified theories;    M theory;    Quantum numbers;    Wilson line;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/631/1/012085/pdf
DOI  :  10.1088/1742-6596/631/1/012085

来源: IOP

【 摘 要 】

We consider Grand Unified Theories based on SO(10) which originate from M theory on G2manifolds. In this framework we are naturally led to a novel solution of the doublet- triplet splitting problem involving an extra vector-like pair by considering discrete symmetries of the extra dimensions and preserving unification. Since Wilson line breaking preserves the rank of the gauge group, the necessary U(1) gauge breaking is generated from extra multiplets. The main prediction of the approach is the existence of light states with the quantum numbers of a vector-like pair which could show up in future LHC searches.