Model building by coset space dimensional reduction in eight-dimensions

• Published in: Physics letters. B Vol. 675; no. 5; pp. 450 - 454
• Main Authors: Jittoh, Toshifumi, Koike, Masafumi, Nomura, Takaaki, Sato, Joe, Toyama, Yutsuki
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 25.05.2009; Elsevier
• Subjects: Coset space dimensional reduction; Exact sciences and technology; Gauge-Higgs unification; Grand unified theory; Nuclear physics; Physics; The physics of elementary particles and fields; 12.10.Dm; 11.10.Kk; Gauge-Higgs unification; Coset space dimensional reduction; Grand unified theory; 12.10.-g; Standard model; Space-time; Gauge group; Four dimension theory; Fermions; Higgs model
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/j.physletb.2009.04.044

We investigate gauge-Higgs unification models in eight-dimensional spacetime where extra-dimensional space has the structure of a four-dimensional compact coset space. The combinations of the coset space and the gauge group in the eight-dimensional spacetime of such models are listed. After the dimensional reduction of the coset space, we identified SO(10), SO(10)×U(1) and SO(10)×U(1)×U(1) as the possible gauge groups in the four-dimensional theory that can accomodate the Standard Model and thus is phenomenologically promising. Representations for fermions and scalars for these gauge groups are tabulated.