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High Energy Physics - Phenomenology

arXiv:1611.10295 (hep-ph)
[Submitted on 30 Nov 2016]

Title:Integrating out resonances in strongly-coupled electroweak scenarios

Authors:Ignasi Rosell, Antonio Pich, Joaquin Santos, Juan Jose Sanz-Cillero
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Abstract:Accepting that there is a mass gap above the electroweak scale, the Electroweak Effective Theory (EWET) is an appropriate tool to describe this situation. Since the EWET couplings contain information on the unknown high-energy dynamics, we consider a generic strongly-coupled scenario of electroweak symmetry breaking, where the known particle fields are coupled to heavier states. Then, and by integrating out these heavy fields, we study the tracks of the lightest resonances into the couplings. The determination of the low-energy couplings (LECs) in terms of resonance parameters can be made more precise by considering a proper short-distance behaviour on the Lagrangian with heavy states, since the number of resonance couplings is then reduced. Notice that we adopt a generic non-linear realization of the electroweak symmetry breaking with a singlet Higgs.
Comments: 11 pages. Talk given at the XIIth Quark Confinement and the Hadron Spectrum, 28 August - 4 September (2016), Thessaloniki (Greece)
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: IFIC-16-89 , FTUV-16-3011
Cite as: arXiv:1611.10295 [hep-ph]
  (or arXiv:1611.10295v1 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1611.10295
Related DOI: https://doi.org/10.1051/epjconf/201713710006

Submission history

From: Ignasi Rosell [view email]
[v1] Wed, 30 Nov 2016 18:10:27 UTC (31 KB)
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