A Note on Anomaly Matching for Finite Density QCD

F. Sannino

Published 2000-02-25, updated 2000-03-22Version 3

We note that the QCD phases at large finite density respect 't Hooft anomaly matching conditions. Specifically the spectrum of the light excitations possesses the correct quantum numbers required to obey global anomaly constraints. We argue that 't Hooft constraints can be used at finite density along with non perturbative methods to help selecting the correct phase.