Recent Developments in Supersymmetric and Hidden Sector Dark Matter

Abstract

New results which correlate SUSY dark matter with LHC signals are presented, and a brief review of recent developments in supersymmetric and hidden sector dark matter is given. It is shown that the direct detection of dark matter is very sensitive to the hierarchical SUSY sparticle spectrum and the spectrum is very useful in distinguishing models. It is shown that the prospects of the discovery of neutralino dark matter are very bright on the "Chargino Wall" due to a copious number of model points on the Wall, where the NLSP is the Chargino, and the spin independent neutralino-proton cross section is maintained at high values in the $10^{-44}$cm$^{2}$ range for neutralino masses up to $\sim 850$ GeV . It is also shown that the direct detection of dark matter along with lepton plus jet signatures and missing energy provide dual, and often complementary, probes of supersymmetry. Finally, we discuss an out of the box possibility for dark matter, which includes dark matter from the hidden sector, which could either consist of extra weakly interacting dark matter (a Stino XWIMP), or milli-charged dark matter arising from the Stueckelberg extensions of the MSSM or the SM.Comment: 6 pages, 2 figs. Based on invited plenary talk at the 16th International Conference on "Supersymmetry and Unification of Fundamental Interactions", at Seoul, Korea, June 16-21, 200

R-parity conservation via the Stueckelberg mechanism: LHC and Dark Matter Signals

“…Here the Stueckelberg sector generates two extra massive vector neutral bosons, i.e., Z ′ and Z ′′ , one of which would be very narrow and could lie even in the sub-TeV region, and thus would be accessible at the LHC. The models with massive mediators arise generally via mass mixing and kinetic mixing of Abelian gauge bosons ( [30][31][32][33][34][35][36][37][38][39][40][41][42][43]; for additional works, see [44,Chapter 8,pg. 136]) and the mixings are also the source of the so called dark forces [30,32] -the mixings allow for a portal between the hidden (dark) sector via massive mediators [30][31][32][33][34][35][36] (from which several components of dark matter can arise) and the visible sector where the states charged under the the Standard Model reside.…”