Lattice studies of (not so) large N QCD

by Thomas Degrand (university of colorado)

Tuesday 29 Nov 2016, 11:00 → 13:00 Europe/Zurich

4/2-011 - TH common room (CERN)

The large N limit tells us a lot about QCD and its close relatives. However, it only has a small lattice literature. This is a pity, because many large N predictions are nonperturbative and lattice calculations are about the only way to check them. I will talk about a (low precision) lattice simulation study of large N regularities in SU(N) gauge theory with N=2, 3, 4 and 5, and two flavors of dynamical fundamental representation fermions. Large N scaling works really well for the static potential, for meson masses and decay constants, and for baryon spectroscopy.