9 papers
Superconvergence Relations
Reinhard Oehme
For a limited number of matter fields, the discontinuity of the transverse gauge field propagator can satisfy an exact sum rule. With controlled and limited gauge dependence, this…
Superconvergence and Duality
Reinhard Oehme
Superconvergence relations for the transverse gauge field propagator can be used in order to show that the corresponding gauge quanta are not elements of the physical state space,…
Reduction of Coupling Parameters in Quantum Field Theories
Reinhard Oehme
A concise survey is given of the general method of reduction in the number of coupling parameters. Theories with several independent couplings are related to a set of theories with…
Reduction of Coupling Parameters and Duality
Reinhard Oehme
The general method of the reduction in the number of coupling parameters is discussed. Using renormalization group invariance, theories with several independent couplings are relat…
Superconvergence, Confinement and Duality
Reinhard Oehme
Arguments for the confinement of transverse gauge field excitations, which are based upon superconvergence relations of the propagator, and upon the BRST algebra, are reviewed and…
Dispersion Relations in Gauge Theories with Confinement
Reinhard Oehme
The analytic structure of {\it physical} amplitudes is considered for gauge theories with confinement of excitations corresponding to the elementary fields. Confinement is defined…