Effective Field Theory Dimensional Regularization
arXiv:hep-ph/0102161 · doi:10.1103/PhysRevD.65.016001
Abstract
A Lorentz-covariant regularization scheme for effective field theories with an arbitrary number of propagating heavy and light particles is given. This regularization scheme leaves the low-energy analytic structure of Greens functions intact and preserves all the symmetries of the underlying Lagrangian. The power divergences of regularized loop integrals are controlled by the low-energy kinematic variables. Simple diagrammatic rules are derived for the regularization of arbitrary one-loop graphs and the generalization to higher loops is discussed.
22 pages, 11 figures and 1 table
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