Journal of Physics
We give a prescription for the one-loop renormalisation of the imaginary parts of vertex functions in gø4, which are generated when gR < 0 is non-perturbative in ɛ. This fixed point determines the imaginary parts of the critical exponents which are generated when ɛ < 0, and allows us to determine the high-order behaviour of the perturbation series in E for these exponents. The generalisation of these ideas to the O(n) symmetric g(ø2)2 model is also given.
Field theory (Physics)
Citation: Pilot Scholars Version (Modified MLA Style)
McKane, A. J.; Wallace, D. J.; and Bonfim, O. F. de Alcantara, "Non-perturbative renormalisation using dimensional regularisation: applications to the ε expansion" (1984). Physics Faculty Publications and Presentations. Paper 9.