621 citations · 5.9k across the 72 of their papers we have counts for
74 papers
Renormalization of the topological charge density in QCD with dimensional regularization
Martin Lüscher, Peter Weisz
To all orders of perturbation theory, the renormalization of the topological charge density in dimensionally regularized QCD is shown to require no more than an additive renormaliz…
On the rotator Hamiltonian for the SUSU sigma-model in the delta-regime
J. Balog, F. Niedermayer, P. Weisz
We investigate some properties of the standard rotator approximation of the SUSU sigma-model in the delta-regime. In particular we show that the isospin susceptib…
Finite volume mass gap and free energy of the SU(N)xSU(N) chiral sigma model
Ferenc Niedermayer, Peter Weisz
We compute the free energy in the presence of a chemical potential coupled to a conserved charge in the effective SU(N)xSU(N) scalar field theory to third order for asymmetric volu…
Casimir squared correction to the standard rotator Hamiltonian for the O() sigma-model in the delta-regime
Ferenc Niedermayer, Peter Weisz
In a previous paper we found that the isospin susceptibility of the O() sigma-model calculated in the standard rotator approximation differs from the next-to-next to leading ord…
Isospin susceptibility in the O() sigma-model in the delta-regime
Ferenc Niedermayer, Peter Weisz
We compute the isospin susceptibility in an effective O() scalar field theory (in dimensions), to third order in chiral perturbation theory (PT) in the delta--regime us…
Flow equation for the scalar model in the large expansion and its applications
Sinya Aoki, Janos Balog, Tetsuya Onogi +1
We study the flow equation of the O() model in dimensions at the next-to-leading order (NLO) in the expansion. Using the Schwinger-Dyson equation, we derive 2-pt…