Unparticle Physics

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Unparticle Physics

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Title: Unparticle Physics
Author: Georgi, Howard
Citation: Georgi, Howard. 2007. Unparticle physics. Physical Review Letters 98, no. 22: 221601.
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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 d[script U] looks like a nonintegral number d[script U] of invisible particles. Thus dramatic evidence for a nontrivial scale invariant sector could show up experimentally in missing energy distributions.
Published Version: http://dx.doi.org/10.1103/PhysRevLett.98.221601
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:2961663
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