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The leptonic sector in Quiver Gauge Theories: theory and phenomenology

Grant number: 12/21627-9
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): April 01, 2013
Effective date (End): September 30, 2017
Field of knowledge:Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
Principal researcher:Ricardo D'Elia Matheus
Grantee:Camila Sampaio Machado
Home Institution: Instituto de Física Teórica (IFT). Universidade Estadual Paulista (UNESP). Campus de São Paulo. São Paulo , SP, Brazil
Associated scholarship(s):15/12577-6 - Scattering rates for transversely polarized vector bosons in the effective field theory framework, BE.EP.DR


With this project we aim to study gauge theories in the quiver and to explore their applications to physics beyond the Standard Model (SM) in the TeV scale. We are doubly motivated: there are theoretical reasons to expect physics beyond the SM to manifest itself at this scale and it is currently being tested in the Large Hadron Collider (LHC). We will study models obtained from Warped Extra Dimensional theories (WED) by dimensional deconstruction. This type of model reproduces the mass spectrum of theories with extra dimensions by identifying the couplings of a 4-dimensional action, given by N gauge groups, with those of a discretized extra dimension. They give us the possibility of explaining both the SM scale hierarchy and the fermion mass hierarchy, without the usually present flavor changing neutral currents. We will build specific models to embed leptons in this framework e the resulting phenomenology in the LHC will be studied using computational simulations. (AU)

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Scientific publications (5)
(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)
CARENA, MARCELA; LI, YING-YING; MACHADO, CAMILA S.; MACHADO, PEDRO A. N.; WAGNER, CARLOS E. M. Neutrinos in large extra dimensions and short-baseline nu(e) appearance. Physical Review D, v. 96, n. 9 NOV 16 2017. Web of Science Citations: 10.
AZATOV, ALEKSANDR; CONTINO, ROBERTO; MACHADO, CAMILA S.; RIVA, FRANCESCO. Helicity selection rules and noninterference for BSM amplitudes. Physical Review D, v. 95, n. 6 MAR 20 2017. Web of Science Citations: 37.
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: 20.
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: 24.
MACHADO, C. S.; MATHEUS, R. D.; FINAZZO, S. I.; NORONHA, J. Modification of the B meson mass in a magnetic field from QCD sum rules. Physical Review D, v. 89, n. 7 APR 10 2014. Web of Science Citations: 25.

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