Unparticle Physics

dc.creatorGeorgi, Howard
dc.date2007-03-23
dc.date2007-05-20
dc.date.accessioned2026-07-07T11:02:55Z
dc.date.available2026-07-07T11:02:55Z
dc.descriptionI 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 $d_{\mathcal{U}}$ looks like a non-integral number $d_{\mathcal{U}}$ of invisible particles. Thus dramatic evidence for a nontrivial scale invariant sector could show up experimentally in missing energy distributions.
dc.description9 pages, 1 figure - more references and minor wording changes in v3
dc.identifierhttps://arxiv.org/abs/hep-ph/0703260
dc.identifierhttp://arxiv.org/abs/hep-ph/0703260
dc.identifierPhys.Rev.Lett.98:221601,2007
dc.identifierdoi:10.1103/PhysRevLett.98.221601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188418
dc.subjectHigh Energy Physics - Phenomenology
dc.titleUnparticle Physics
dc.typetext

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