Andrea Shindler

WilsonχPTContinuum Symanzik action (effective theory)L eff = L + aL 1 + ...Develop a generalized chiral expansion for the Symanzik effective theorySharpe, Singleton: 1998L (2)W χ = F 24 Tr ∂ µ U(x) † ∂ µ U(x) − Σ 2 Tr MU(x) † + M † U(x) + a W 0F 2Tr U(x) † + U(x) ,2m R → m R + aW 0 F 2 /Σ ≡ m χExtend W PT to the regimeMonday, January 17, 2011