Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-03-07
Phys.Rev.D84:051701,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, 1 figure, minor improvements (especially in Eq.(4)), references added and typos corrected
Scientific paper
10.1103/PhysRevD.84.051701
We propose a novel way to break grand unified gauge symmetries via the Hosotani mechanism in models that can accommodate chiral fermions. Adjoint scalar fields are realized through the so-called diagonal embedding method which is often used in the heterotic string theory. We calculate the one-loop effective potential of the adjoint scalar field in a five dimensional model compactified on an S^1/Z_2 orbifold, as an illustration. It turns out that the potential is basically the same as the one in an S^1 model, and thus the results in literatures, in addition to the chiral fermions, can be realized easily.
Kojima Kentaro
Takenaga Kazunori
Yamashita Toshifumi
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