Conveners
Dark Matter
- Oscar Zapata
Dark Matter
- Oscar Zapata
Dark Matter
- Carlos E. Yaguna
In this talk, we introduce a fermionic dark-matter model whose interactions with the Standard Model proceed via vector and scalar mediators. We will show that the model exhibits a rich dark matter phenomenology, while also possessing a constrained parameter space that can be further probed by future experiments.
We studied a Standard Model (SM) extension that provides a bicomponent dark matter scenario. The scalar sector of the SM is extended by adding an inert SU(2) doublet and an inert SU(2) triplet, as well as a SU(2) triplet with hypercharge Y=1 to generate the light neutrino masses through type-II seesaw mechanism. The contribution of the two dark matter candidates to the total dark matter...
The PICO collaboration operates the world’s most sensitive bubble chambers for dark matter searches, setting some of the strongest constraints on spin-dependent WIMP–nucleon interactions. As the traditional WIMP parameter space becomes increasingly constrained, attention is turning toward light and exotic candidates, including fermionic and vector dark matter with absorptive (exothermic)...
SIMP dark matter can be realized through low-energy $SU(N_c)$ effective theories, where dark matter consists of the Goldstone bosons associated with the spontaneous breaking of chiral symmetry, the dark pions. The restoration of this symmetry in the early universe may proceed through a first-order phase transition (FOPT), capable of generating a stochastic background of gravitational waves...
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...
