16–18 Jul 2025
America/Bogota timezone

Electroweak Phase Transition in a $Z_6$-Symmetric Model with Scalar Singlet and Fermionic Dark Matter

16 Jul 2025, 17:15
20m
Regular Talk (20' + 5') Dark Matter

Speaker

Daniel Ruiz Mejía (Universidad de Antioquia)

Description

We investigate the nature of the electroweak phase transition (EWPT) in a minimal $Z_6$-symmetric extension of the Standard Model, featuring a fermionic dark matter candidate ($\psi_L,\psi_R$) and a real scalar singlet ($\phi$). Selecting benchmark points that satisfy both the observed dark matter relic density and direct detection constraints, we analyze whether the EWPT is first-order in this scenario. Our study demonstrates how specific parameter choices can enhance the strength of the phase transition, providing a starting point for electroweak baryogenesis and gravitational wave signatures.

Authors

Daniel Ruiz Mejía (Universidad de Antioquia) Oscar Zapata

Presentation materials

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