Advanced search
Start date
Betweenand

Hierarchical quiver Gauge theories: model building and phenomenology

Grant number: 12/21436-9
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): May 01, 2013
Effective date (End): May 02, 2017
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Ricardo D'Elia Matheus
Grantee:Leonardo de Lima
Home Institution: Instituto de Física Teórica (IFT). Universidade Estadual Paulista (UNESP). Campus de São Paulo. São Paulo , SP, Brazil
Associated scholarship(s):15/25393-0 - Composite Higgs models and cosmological relaxation of the electroweak scale, BE.EP.PD

Abstract

The Standard Model (SM) of particle physics is an extremely successful description of all experimental data obtained thus far. However, there are reasons to expect that the SM cannot be valid for arbitrarily high energy scales. In the SM, the mass of the Higgs boson is quadratically sensitive to radiative corrections and, hence, suffers from a huge fine-tunning problem, leading to the so-called gauge hierarchy problem whose natural solution demands the presence of new physics at the TeV scale.In this project we investigate four dimensional models that describe physics at the TeV scale obtained from discretized five dimensional theories with an AdS5 metric, following the procedure of dimensional deconstruction. In these theories the gauge and fermion mass hierarchies are naturally generated. We propose to build realistic models of electroweak symmetry breaking and to study their phenomenology. We may also study the holographic description of strongly coupled systems. We will make predictions to be verified at the LHC and other experiments. (AU)

Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FONSECA, NAYARA; VON HARLING, BENEDICT; DE LIMA, LEONARDO; MACHADO, CAMILA S. A warped relaxion. Journal of High Energy Physics, n. 7 JUL 5 2018. Web of Science Citations: 3.
CHALA, MIKAEL; DURIEUX, GAUTHIER; GROJEAN, CHRISTOPHE; DE LIMA, LEONARDO; MATSEDONSKYI, OLEKSII. Minimally extended SILH. Journal of High Energy Physics, n. 6 JUN 16 2017. Web of Science Citations: 19.
FONSECA, N.; DE LIMA, L.; MACHADO, C. S.; MATHEUS, R. D. Large field excursions from a few site relaxion model. Physical Review D, v. 94, n. 1 JUL 7 2016. Web of Science Citations: 22.
DE LIMA, L.; MACHADO, C. S.; MATHEUS, R. D.; DO PRADO, L. A. F. Higgs flavor violation as a signal to discriminate models. Journal of High Energy Physics, n. 11 NOV 12 2015. Web of Science Citations: 25.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.