Speaker
Bohdan Grzadkowski
(University of Warsaw)
Summary
A possibility of enhancing the dark-matter self-interaction cross-section ($\sigma_{\rm self}$) by a Higgs boson resonance is discussed within a model of Abelian vector dark matter. The model assumes extra $U(1)$ symmetry group factor and an additional complex Higgs field needed to generate a mass for the dark vector boson via the Higgs mechanism. The scalar sector contains an extra neutral Higgs boson $h_2$. If $2 M_{DM}\approx M_{h_2}$ then $\sigma_{\rm self}$ could be amplified by s-channel resonance and the observed dark matter abundance could be properly reproduced. Consequences of such a scenario will be discussed.
Primary author
Bohdan Grzadkowski
(University of Warsaw)
Co-author
Mateusz Duch
(University of Warsaw)
