The complex-mass scheme for perturbative calculations with unstable particles
arXiv:hep-ph/0605312 · doi:10.1016/j.nuclphysbps.2006.09.025
Abstract
Perturbative calculations with unstable particles require the inclusion of their finite decay widths. A convenient, universal scheme for this purpose is the complex-mass scheme. It fully respects gauge-invariance, is straight-forward to apply, and has been successfully used for the calculation of various tree-level processes and of the electroweak radiative corrections to e+ e- -> 4f and H -> 4f.
5 pages, LaTeX, to appear in the proceedings of the "8th DESY Workshop on Elementary Particle Theory, Loops and Legs in Quantum Field Theory", Eisenach, 2006
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