Speaker
Description
In the study of dark matter detection at colliders, novel candidates have emerged to bridge between experimental data and theoretical models. Dark Showers (DS) are being studied as an extension of the Standard Model (SM), containing both invisible and visible particles that allow us to predict scenarios involving collider observables. Among these, Semi-Visible Jets (SVJs), represent a novel promising new signature, particularly those mediated by a massive $Z^{\prime}$ boson that enables the production of heavy dark hadrons. In such a scenario, jets enclose visible SM particles and invisible dark matter components, having more Missing Transverse Energy $E_{T}^{miss}$ (MET). The complexity is further heightened since the poorly constrained nature of the dark sector; factors such as the dark confinement scale, dark meson masses and the fraction of the invisible DM hadrons, our study will review different tools at the jet-substructure level to study Semi-Visible Jets (SVJs), formed by the decay of a resonant heavy gauge boson $Z^\prime$. We characterise the leading jet using substructure metrics such as the Energy-Energy Correlation Functions (EECs), angularities, charged hadrons multiplicity and the Lund Jet Plane (LJP) as kinematical features with modern approaches at the MET including the global MET distribution and the difference on the azimuthal angle of the leading jet and the global MET.