Weighted Power Counting and Perturbative Unitarity
arXiv:1012.2387 · doi:10.1103/PhysRevD.83.045029
Abstract
We consider the relationship between renormalizability and unitarity at a Lifshitz point in d dimensions. We test tree unitarity for theories containing only scalars and fermions, and for pure gauge theory. In both cases, we find the requirement of weighted power-counting renormalizability is equivalent to that of tree unitarity.
12 pages, version published in Phys. Rev. D
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