The leptonic sector in Quiver Gauge Theories: theory and phenomenology
Testing the Standard Model with LHC Physics and signals from Cosmological Phase Tr...
| Full text | |
| Author(s): |
Dias, A. G.
;
Leite, J.
;
Lopes, D. D.
;
Nishi, C. C.
Total Authors: 4
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW D; v. 98, n. 11, p. 13-pg., 2018-12-10. |
| Abstract | |
We present a model based on the SU(3)(C)circle times SU(3)(L)circle times U(1)(X) gauge symmetry that relates the mass hierarchy of the fermions with the solution to the strong CP problem through the U(1)(PQ) Peccei-Quinn symmetry. This last symmetry arises accidentally with the imposition of a discrete Z(9) symmetry, which also secludes the different scales in the double seesaw mechanism taking place in the neutrino sector. The symmetry breakdown is performed by three scalar triplets plus a scalar singlet hosting an axion field, whose particle excitation can be a component of dark matter. We show a mechanism where a small effective vacuum expectation value is generated for a scalar triplet which is supposed to have a hare mass above the energy scale where the SU(3)(L) circle times U(1)(X) symmetry is broken. Combined with the energy scale in which the U(1)(PQ) is broken, such a mechanism gives rise to a natural hierarchy to the fermions. Beyond the Standard Model particle content, the model predicts an invisible axion, a, three GeV neutrinos, N-iL, plus several new particles at the TeV scale which are: five vector bosons, U-+/-,V-0, ,V-0 dagger, and Z'; one up-type U, and two down-type D-a quarks; and at least a CP-even, H-1, plus non-Hermitian neutral, phi(0), phi(0 dagger), scalar bosons. The model may be tested by looking for the possible production of such particles at the LHC. (AU) | |
| FAPESP's process: | 17/23027-2 - Gauge extensions of the Standard Model: generating natural masses for neutrinos and charged leptons |
| Grantee: | Julio Rafael da Silva Leite |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 14/19164-6 - Challenges in the 21st century in neutrino physics and astrophysics |
| Grantee: | Orlando Luis Goulart Peres |
| Support Opportunities: | Special Projects |