Back to Search
Start Over
Minimal anomaly-free chiral fermion sets and gauge coupling unification
Minimal anomaly-free chiral fermion sets and gauge coupling unification
- Publication Year :
- 2014
-
Abstract
- We look for minimal chiral sets of fermions beyond the standard model that are anomaly free and, simultaneously, vectorlike particles with respect to colour SU(3) and electromagnetic U(1). We then study whether the addition of such particles to the standard model particle content allows for the unification of gauge couplings at a high energy scale, above $5.0 \times 10^{15}$ GeV so as to be safely consistent with proton decay bounds. The possibility to have unification at the string scale is also considered. Inspired in grand unified theories, we also search for minimal chiral fermion sets that belong to SU(5) multiplets. Restricting to representations up to dimension 50, we show that some of these sets can lead to gauge unification at the GUT and/or string scales.<br />Comment: 13 pages, 5 figures, 8 tables; Comments and references added, final version to appear in Phys. Rev. D
- Subjects :
- High Energy Physics - Phenomenology
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1409.0805
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.90.125037