BONANNO, Alfio MaurizioAlfio MaurizioBONANNOZappalà, D.D.Zappalà2020-04-232020-04-2320150550-3213http://hdl.handle.net/20.500.12386/24209Acknowledgements The authors thank A. Codello and H. Diehl for e-mail correspondence.The Lifshitz critical behavior for a single component field theory is studied for the specific isotropic case in the framework of the Functional Renormalization Group. Lifshitz fixed point solutions of the flow equation, derived by using a Proper Time regulator, are searched at lowest and higher order in the derivative expansion. Solutions are found when the number of spatial dimensions d is contained within the interval 5.5 < d < 8. <P />STAMPAenArticle10.1016/j.nuclphysb.2015.02.0132-s2.0-84928725161000352045000023https://www.sciencedirect.com/science/article/pii/S0550321315000590?via%3Dihub2015NuPhB.893..501BFIS/02 - FISICA TEORICA, MODELLI E METODI MATEMATICIScienze Fisiche Settori ERC (ERC) di riferimento::PE2 Fundamental constituents of matter: particle, nuclear, plasma, atomic, molecular, gas, and optical plasma