Conveners
BSM VIII
- Pouya Asadi (University of Oregon)
The constituents of dark matter are still unknown, and the viable possibilities span a very large mass range. Specific scenarios for the origin of dark matter sharpen the focus on a narrower range of masses: the natural scenario where dark matter originates from thermal contact with familiar matter in the early Universe requires the DM mass to lie within about an MeV to 100 TeV. Considerable...
We utilize photon and charged meson fluxes at proton beam targets to produce long lived particles (LLPs) via scattering and decay mechanisms. These particles encompass light scalars and gauge bosons that appear in theories like extended Higgs sectors, $U(1)_{L_{\mu}-L_{\tau}}$, $U(1)_{T_{3R}}$ etc. We look at the sensitivities of the above in the context of experiments like ArgoNeuT,...
In this work, we study the status of negative coupling modifiers in extended Higgs sectors, focusing on the ratio of coupling modifiers that probes custodial symmetry violation $\lambda_{WZ} = \kappa_{W}/\kappa_{Z}$. Higgs sectors with multiplets larger than doublets are the only weakly coupled models that give tree-level modifications to $\lambda_{WZ}$, and we explore all such models allowed...
