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High Energy Physics - Phenomenology

arXiv:hep-ph/0502222 (hep-ph)
[Submitted on 23 Feb 2005 (v1), last revised 24 Oct 2005 (this version, v2)]

Title:Top Compositeness and Precision Unification

Authors:Kaustubh Agashe, Roberto Contino, Raman Sundrum
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Abstract: The evolution of Standard Model gauge couplings is studied in a non-supersymmetric scenario in which the hierarchy problem is resolved by Higgs compositeness above the weak scale. It is argued that massiveness of the top quark combined with precision tests of the bottom quark imply that the right-handed top must also be composite. If, further, the Standard Model gauge symmetry is embedded into a simple subgroup of the unbroken composite-sector flavor symmetry, then precision coupling unification is shown to occur at~10^{15} GeV, to a degree comparable to supersymmetric unification.
Comments: v2: few extra comments added; slightly shorter version published in PRL
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
Cite as: arXiv:hep-ph/0502222
  (or arXiv:hep-ph/0502222v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0502222
Journal reference: Phys.Rev.Lett.95:171804,2005
Related DOI: https://doi.org/10.1103/PhysRevLett.95.171804

Submission history

From: Roberto Contino [view email]
[v1] Wed, 23 Feb 2005 20:37:08 UTC (161 KB)
[v2] Mon, 24 Oct 2005 20:20:25 UTC (162 KB)
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