Free Meson Seminars
Order parameters and color-flavor center symmetry in QCD
by Dr. Srimoyee Sen (University of Washington, Seattle, USA)
Thursday, December 7, 2017 from to (Asia/Kolkata)
Common lore suggests that N-color QCD with massive quarks has no useful order parameters which can be non-trivial at zero baryon density. However, such order parameters do exist when there are nf quark flavors with a common mass and d ≡ gcd (nf, N) > 1. These theories have a Zd color-flavor center symmetry arising from intertwined color center transformations and cyclic flavor permutations. The symmetry realization depends on the temperature, baryon chemical potential and value of nf/N, with implications for conformal window studies and dense quark matter.