Fermions on spontaneously generated spherical extra dimensions
Abstrak
We include fermions to the model proposed in hep-th/0606021, and obtain a renormalizable 4-dimensional SU(N) gauge theory which spontaneously generates fuzzy extra dimensions and behaves like Yang-Mills theory on M4 × S2. We find a truncated tower of fermionic Kaluza-Klein states transforming under the low-energy gauge group, which is found to be either SU(n), or SU(n1) × SU(n2) × U(1). The latter case implies a nontrivial U(1) flux on S2, leading to would-be zero modes for the bifundamental fermions. In the non-chiral case they may pair up to acquire a mass, and the emerging picture is that of mirror fermions. We discuss the possible implementation of a chirality constraint in 6 dimensions, which is nontrivial at the quantum level due to the fuzzy nature of the extra dimensions.
Topik & Kata Kunci
Penulis (2)
H. Steinacker
G. Zoupanos
Akses Cepat
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Cek di sumber asli →- Tahun Terbit
- 2007
- Bahasa
- en
- Total Sitasi
- 54×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1088/1126-6708/2007/09/017
- Akses
- Open Access ✓