Interactions of unparticles with standard model particles

Journal Article · Thu Nov 01 04:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.091702· OSTI ID:21032533

Shaolong, Chen; Xiaogang, He ^[1]

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1. Department of Physics and Center for Theoretical Sciences, National Taiwan University, Taipei, Taiwan (China)

We study interactions of unparticles U of dimension d{sub U} due to Georgi with standard model (SM) fields through effective operators. The unparticles describe the low energy physics of a nontrivial scale invariant sector. Since unparticles come from beyond the SM physics, it is plausible that they transform as a singlet under the SM gauge group. This helps tremendously in limiting possible interactions. We analyze interactions of scalar U, vector U{sup {mu}}, and spinor U{sup s} unparticles with SM fields and derivatives up to dimension four. Using these operators, we discuss different features of producing unparticles at an e{sup +}e{sup -} collider and other phenomenologies. It is possible to distinguish different unparticles produced at an e{sup +}e{sup -} collider by looking at various distributions of production cross sections.

• OSTI ID: 21032533
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CROSS SECTIONS
DISTRIBUTION
ELECTRON-POSITRON INTERACTIONS
ELECTRONS
FIELD OPERATORS
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
POSITRONS
SCALARS
STANDARD MODEL