Reference : Anomaly-free chiral fermion sets and gauge coupling unification
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Physical, chemical, mathematical & earth Sciences : Physics
Anomaly-free chiral fermion sets and gauge coupling unification
Da Silva Simoes, Catarina mailto [Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Inter. fondamentales en physique et astrophysique (IFPA) >]
Journal of Physics. Conference Series
Institute of Physics
Yes (verified by ORBi)
United Kingdom
4th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE2014)
from 02-12-2014 to 06-12-2014
[en] In this work we search for minimal sets of chiral fermions, with arbitrary quantum numbers, beyond the Standard Model that are anomaly-free and lead to vector-like particles
under SU(3) and U(1)_em after symmetry breaking. We further study which of these anomaly free
sets lead to unification of the gauge couplings at energy scales higher that 5.0×10^15 GeV in
order to be consistent with proton decay bounds. A similar study is performed in the context of
the SU(5) gauge group; for some of the anomaly-free sets found it is possible to obtain unification
of the gauge couplings with the extra fermions decoupling at high intermediate scales.

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