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High Energy Physics - Phenomenology

arXiv:1305.0621 (hep-ph)
[Submitted on 3 May 2013 (v1), last revised 25 Sep 2013 (this version, v2)]

Title:Trilinear gauge boson couplings in the standard model with one universal extra dimension

Authors:M. A. López-Osorio, E. Martínez-Pascual, J. Montano, H. Novales-Sánchez, J. J. Toscano, E. S. Tututi
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Abstract:One-loop effects of Standard Model (SM) extensions comprising universal extra dimensions are essential as a consequence of Kaluza-Klein (KK) parity conservation, for they represent the very first presumable virtual effects on low-energy observables. In this paper, we calculate the one-loop CP-even contributions to the SM WWgamma and WWZ gauge couplings produced by the KK excited modes that stand for the dynamical variables of the effective theory emerged from a generalization of the SM to five dimensions, in which the extra dimension is assumed to be universal, after compactification. The employment of a covariant gauge-fixing procedure that removes gauge invariance associated to gauge KK excited modes, while keeping electroweak gauge symmetry manifest, is a main feature of this calculation, which is performed in the Feynman 't Hooft gauge and yields finite results that consistently decouple for a large compactification scale. After numerical evaluation, our results show to be comparable with the one-loop SM contributions and well within the reach of a next linear collider.
Comments: 25 pages, 6 figures, new references added, typos corrected
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:1305.0621 [hep-ph]
  (or arXiv:1305.0621v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1305.0621
Journal reference: Phys.Rev. D88 (2013) 016010
Related DOI: https://doi.org/10.1103/PhysRevD.88.016010

Submission history

From: Héctor Novales-Sánchez [view email]
[v1] Fri, 3 May 2013 04:23:34 UTC (2,442 KB)
[v2] Wed, 25 Sep 2013 04:57:00 UTC (2,446 KB)
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