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hep-th2000★ 99 cited
Gauge invariance and background field formalism in the exact renormalisation group
Filipe Freire, Daniel F. Litim, Jan M. Pawlowski
We discuss gauge symmetry and Ward-Takahashi identities for Wilsonian flows in pure Yang-Mills theories. The background field formalism is used for the construction of a gauge inva…
hep-ph2000★ 28 cited
Charge cross-over at the U(1)-Higgs phase transition
Filipe Freire, Daniel F. Litim
The type-I region of phase transitions at finite temperature of the U(1)-Higgs theory in 3+1 dimensions is investigated in detail using a Wilsonian renormalisation group. We consid…