| Full text | |
| Author(s): |
Bittar, Pedro
;
Costa, Davi B.
;
Burdman, Gustavo
Total Authors: 3
|
| Document type: | Journal article |
| Source: | Journal of High Energy Physics; v. N/A, n. 9, p. 28-pg., 2024-09-18. |
| Abstract | |
We introduce a mirror twin Higgs model with spontaneous Z(2) symmetry breaking that ameliorates the constraints in twin Higgs cosmology and, at the same time, generates the Standard Model neutrino masses. The model features an SU(2) triplet with hypercharge 1 alongside its twin counterpart. Spontaneous breaking of both Z(2) and electroweak symmetry occurs in the scalar sector. The Standard Model neutrinos acquire small masses through the type-II seesaw mechanism. In contrast, their twin counterparts acquire large masses, effectively addressing the dark radiation problem in mirror twin Higgs scenarios. We study the impact of the model on the N-eff. constraints, as well as on collider phenomenology. (AU) | |
| FAPESP's process: | 19/04837-9 - Particle Physics Phenomenology |
| Grantee: | Gustavo Alberto Burdman |
| Support Opportunities: | Research Projects - Thematic Grants |