Speaker
Dr
Catarina Simoes
(IFPA, University of Liège)
Description
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 electromagnetic U(1) 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.
Authors
Dr
Catarina Simoes
(IFPA, University of Liège)
Dr
David Emmanuel-Costa
(D. Emmanuel-Costa1,†, R. González FelipeDepartamento de Física and Centro de Física Teórica de Partículas (CFTP), Instituto Superior Técnico, Universidade de Lisboa)
Mr
Luis Cebola
(Departamento de Física and Centro de Física Teórica de Partículas (CFTP), Instituto Superior Técnico, Universidade de Lisboa)
Dr
Ricardo González Felipe
(Departamento de Física and Centro de Física Teórica de Partículas (CFTP), Instituto Superior Técnico, Universidade de Lisboa; Instituto Superior de Engenharia de Lisboa, ISEL)
