Constraints on the unHiggs model from top quark decay

Journal Article · Tue Jun 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.115012· OSTI ID:21408002

Stancato, David; Terning, John ^[1]

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1. Department of Physics, University of California, One Shields Avenue, Davis, California 95616-8677 (United States)

We compute the top quark decay rate in the unHiggs model. In this model, the longitudinally polarized W's are unparticles, which is owed to their Goldstone boson nature, while the transversely polarized W's are not. Thus the fraction of decays with a longitudinal W emitted is different than in the standard model. Comparing this calculation to CDF data, we are able to rule out some of the unHiggs model parameter space. We also use the expected increased accuracy of top decay measurements at the LHC to anticipate further constraints on the unHiggs.

• OSTI ID: 21408002
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 11; Other Information: DOI: 10.1103/PhysRevD.81.115012; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CERN LHC
FERMILAB COLLIDER DETECTOR
GOLDSTONE BOSONS
HIGGS MODEL
PARTICLE DECAY
STANDARD MODEL
T QUARKS
ACCELERATORS
BOSONS
CYCLIC ACCELERATORS
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUARKS
RADIATION DETECTORS
STORAGE RINGS
SYNCHROTRONS
TOP PARTICLES
UNIFIED GAUGE MODELS