59 citations · 195 across the 10 of their papers we have counts for
10 papers
The pinch technique approach to gauge-independent n-point functions
N. J. Watson
The pinch technique (PT) is an algorithm for the rearrangement of contributions to conventional, gauge-dependent n-point functions in gauge theories to obtain a formulation of one-…
On The Pinch Technique Beyond One Loop
N. J. Watson
A brief account is given of the problems involved in extended the pinch technique beyond the one-loop level, and of investigations into one possible approach to solving them.
The Pinch Technique Beyond One Loop: The Gauge-Independent Two-Loop Quark Self-Energy
N. J. Watson
It is shown how the pinch technique algorithm may be consistently extended beyond the one-loop level to obtain the gauge-independent two-loop fermion self-energy -i\hatΣ^(2)(p) in…
Electroweak Effective Charges and their relation to Physical Cross Sections
J. Papavassiliou, E. de Rafael, N. J. Watson
In quantum electrodynamics with fermions f = e,μ..., knowledge of the vacuum polarization spectral function determined from the tree level e^+e^- -> f^+f^- cross sections, together…
The Gauge-Independent QCD Effective Charge
N. J. Watson
It is shown how the QED concept of a gauge-, scale- and scheme-independent one-loop effective charge can be extended directly at the diagrammatic level to QCD, thus justifying expl…
Effective Charges in Non-Abelian Gauge Theories
N. J. Watson
The question of the definition of effective charges for non-abelian gauge theories is discussed, focusing in particular on both the pinch technique and background field method appr…
CP Violating Metastable States and Baryogenesis in the Hot Standard Model
C. P. Korthals Altes, N. J. Watson
We discuss a novel form of CP violation in the standard model. It takes place at temperatures of the order of the electroweak transition, when two regions with different values of…
Gauge-Invariant Variables and Mandelstam Constraints in SU(2) Gauge Theory
N. J. Watson
The recent solution of the Mandelstam constraints for SU(2) is reviewed. This enables the subspace of physical configurations of an SU(2) pure gauge theory on the lattice (introduc…
Solution of the SU(2) Mandelstam Constraints
Jay Watson
It is shown how the Mandelstam constraints for an pure lattice gauge theory with physical degrees of freedom may be solved completely in terms of Wi…
The Shifted Coupled Cluster Method: A New Approach to Hamiltonian Lattice Gauge Theories
C. H. Llewellyn Smith, N. J. Watson
It is shown how to adapt the non-perturbative coupled cluster method of many-body theory so that it may be successfully applied to Hamiltonian lattice gauge theories. The p…