3 papers
hep-ph2026
Dark Matter in the General 2HDM with Extra Top Yukawa Couplings
Leon M. G. de la Vega, Mohamed Krab
We extend the general two Higgs doublet model (G2HDM), which introduces extra Yukawa couplings, by an additional real scalar singlet (G2HDM+S), providing a viable scalar dark matte…
hep-ph2025
Dark Z-mediated dark matter with verifiable exotic scalars
Chuan-Ren Chen, Cheng-Wei Chiang, Leon M. G. de la Vega
In this work, we study a dark matter scenario where a dark Z boson possessing mass mixing with the SM Z boson couples to the DM candidate and serves as the portal to the SM. The UV…
hep-ph2024
The solution to the IceCube Ultra High Energy neutrino deficit in light of NA64
Leon M. G. de la Vega, Eduardo Peinado, Jose Wudka
In this work we analyze the scenario where a MeV scale gauge boson can explain the deficit in the diffuse ultra high energy (UHE) astrophysical neutrino spectrum obser…