Date and time:  October 22nd at 11:00 AM CET

Speaker: Simon J. D. King 

Abstract: In the framework of the (B - L) Supersymmetric Standard  Model (BLSSM), we assess the ability of ground and space based  experiments to establish the nature of its prevalent Dark Matter (DM) candidate, the sneutrino, which could either be CP-even or -odd. Firstly, by benchmarking this theory construct against the results obtained by the Planck spacecraft, we extract the portions of the BLSSM parameter space compliant with relic density data. Secondly, we show that, based on current sensitivities of the Fermi Large Area  Telescope (FermiLAT) and their future projections, the study of high-energy ?-ray spectra will eventually enable us to extract evidence of this DM candidate through its annihilations into W+W? pairs (in turn emitting photons), in the form of both an integrated flux and a differential energy spectrum which cannot be reconciled  with the assumption of DM being fermionic (like, e.g., a neutralino),  although it should not be possible to distinguish between the scalar and pseudoscalar hypotheses. Thirdly, we show that, while underground direct detection experiments will have little scope in testing  sneutrino DM, the Large Hadron Collider (LHC) may be able to do so in a variety of multi-lepton signatures, with and without accompanying  jets (plus missing transverse energy), following data collection during Run 2 and 3.