Unparticle Physics
Abstract
I discuss some simple aspects of the low-energy physics of a nontrivial scale invariant sector of an effective field theory -- physics that cannot be described in terms of particles. I argue that it is important to take seriously the possibility that the unparticle stuff described by such a theory might actually exist in our world. I suggest a scenario in which some details of the production of unparticle stuff can be calculated. I find that in the appropriate low energy limit, unparticle stuff with scale dimension looks like a non-integral number of invisible particles. Thus dramatic evidence for a nontrivial scale invariant sector could show up experimentally in missing energy distributions.
Cite
@article{arxiv.hep-ph/0703260,
title = {Unparticle Physics},
author = {Howard Georgi},
journal= {arXiv preprint arXiv:hep-ph/0703260},
year = {2008}
}
Comments
9 pages, 1 figure - more references and minor wording changes in v3