A compact 341 model at TeV scale

Autor(es)

Dias, A. G. ^[1] ; Pinheiro, P. R. D. ^[2] ; Pires, C. A. de S. ^[2] ; Rodrigues da Silva, P. S. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Santo Andre, SP - Brazil

^[2] Univ Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, Paraiba - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ANNALS OF PHYSICS; v. 349, p. 232-252, OCT 2014.
• Citações Web of Science: 7

Resumo

We build a gauge model based on the SU(3)(c) circle times SU(4)(L) circle times U(1)(X) symmetry where the scalar spectrum needed to generate gauge boson and fermion masses has a smaller scalar content than usually assumed in literature. We compute the running of its abelian gauge coupling and show that a Landau pole shows up at the TeV scale, a fact that we use to consistently implement those fermion masses that are not generated by Yukawa interactions, including neutrino masses. This is appropriately achieved by non renormalizable effective operators, suppressed by the Landau pole scale. Also, SU(3)(c) circle times SU(3)(L) circle times U(1)(N) models embedded in this gauge structure are bound to be strongly coupled at this same energy scale, contrary to what is generally believed, and neutrino mass generation is rather explained through the same effective operators used in the larger gauge group. Besides, their nice features, as the existence of cold dark matter candidates and the ability to reproduce the observed standard model Higgs-like phenomenology, are automatically inherited by our model. Finally, our results imply that this model is constrained to be observed or discarded soon, since it must be realized at the currently probed energy scale in LHC. (C) 2014 Elsevier Inc. All rights reserved. (AU)

• Processo FAPESP: 13/22079-8 - Física de partículas e campos: modelo padrão e suas extensões
• Beneficiário: Adriano Antonio Natale
• Modalidade de apoio: Auxílio à Pesquisa - Temático