Unparticle signals with a few particles
arXiv:0808.4075 · doi:10.1088/1126-6708/2009/01/011
Abstract
We use Pade approximants to systematically approximate scalar unparticle propagators and their associated phase factors by a finite number of ordinary particles. This is possible for conformal dimensions 1<d<2, and also for d>2 if we add local terms. A small number of particles can, in some cases, mimic unparticle signals. We also discuss how the approximants capture basic unparticle properties.
10 pages, 8 figures. References added. Modified title and minor changes to match published version
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- Quantum Critical Higgs: From AdS to Colliders
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