UC Davis Particle Physics Seminars

It is widely believed that the emergent magnetic gauge symmetry of SQCD is analogous to a hidden local symmetry (HLS). James Barnard explores this idea in detail, deriving the entire (spontaneously broken) magnetic theory by applying the HLS formalism to spontaneously broken SU(N) SQCD. We deduce the Kahler potential in the HLS description, and show that gauge and flavour symmetry are smoothly restored along certain scaling directions in moduli space. We propose that it is these symmetry restoring directions, associated with the R-symmetry of the theory, that allow full Seiberg duality. Reconsidering the origin of the magnetic gauge bosons as the rho-mesons of the electric theory, colour-flavour locking allows a simple determination of the parameter "a". Its value continuously interpolates between a=2 on the baryonic branch of moduli space - corresponding to "vector meson dominance" - and a=1 on the mesonic branch.

Harald Fritzsch discusses a model of composite weak bosons.

Jamison Galloway reviews recent Higgs data from the LHC and discuss ways in which model-independent conclusions can be drawn. The bottom-up thinking that goes into this can help to determine what other new physics we might anticipate finding at accessible scales, while allowing us to assess emerging proposals for the origins of the hinted Higgs-like state at 125 GeV. Using composite Higgs and the MSSM as two case studies, Galloway discusses the benefits of constructing these generalized exclusions and describe some very general conclusions that they will help to illuminate with current and future data.

Louie Strigari reviews astrophysical constraints on dark matter.

Ian Shoemaker discusses other missing energy signatures at particles colliders.

Tim Tait examines uncertainties in dark matter production at particle colliders.

Bernard Sadoulet discusses the future of dark matter searches.

JP Chou reviews limits on dark matter from CDF and CMS.

Roni Harnik reviews the theory of dark matter detection at the LHC.

Yu-Hsin Tsai reviews dark matter to Higgs coupling constraints from LEP.