Unique Signatures of Unparticle Resonances at the LHC

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The coupling of unparticles to the Standard Model (SM) Higgs boson leads to a breaking of conformal symmetry which produces an effective mass term in the unparticle propagator. Simultaneously, the unparticle couplings to other SM fields produces an effective unparticle decay width via one-loop self-energy graphs. The resulting unparticle propagator then leads to a rather unique appearance for the shape of unparticle resonances that are not of the usual Breit-Wigner type when they form in high energy collisions. In this paper we explore whether or not such resonances, appearing in the Drell-Yan channel at the LHC, can be differentiated from ... continued below

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18 pages

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Rizzo, Thomas G. September 30, 2008.

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The coupling of unparticles to the Standard Model (SM) Higgs boson leads to a breaking of conformal symmetry which produces an effective mass term in the unparticle propagator. Simultaneously, the unparticle couplings to other SM fields produces an effective unparticle decay width via one-loop self-energy graphs. The resulting unparticle propagator then leads to a rather unique appearance for the shape of unparticle resonances that are not of the usual Breit-Wigner type when they form in high energy collisions. In this paper we explore whether or not such resonances, appearing in the Drell-Yan channel at the LHC, can be differentiated from more conventional Z{prime}-like structures which are representative of the typical Breit-Wigner lineshape. We will demonstrate that even with the high integrated luminosities available at the LHC it may be difficult to differentiate these two types of resonance structures for a substantial range of the unparticle model parameters.

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18 pages

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  • Journal Name: Journal of High Energy Physics (JHEP)

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  • Report No.: SLAC-PUB-13377
  • Grant Number: AC02-76SF00515
  • DOI: 10.1088/1126-6708/2008/01/042 | External Link
  • Office of Scientific & Technical Information Report Number: 939110
  • Archival Resource Key: ark:/67531/metadc900142

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • September 30, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 2, 2016, 4:45 p.m.

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Rizzo, Thomas G. Unique Signatures of Unparticle Resonances at the LHC, article, September 30, 2008; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc900142/: accessed November 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.