Top quark and neutrino composite Higgs bosons
Abstract
In the context of top-quark condensation models, the top quark alone is too light to saturate the correct value of the electroweak scale by its condensate. Within the seesaw scenario the neutrinos can have their Dirac masses large enough so that their condensates can provide a significant contribution to the value of the electroweak scale. We address the question of a phenomenological feasibility of the top-quark and neutrino condensation conspiracy against the electroweak symmetry. It is mandatory to reproduce the masses of electroweak gauge bosons, the top-quark mass and the recently observed scalar mass of 125 GeV and to satisfy the upper limits on absolute value of active neutrino masses. To accomplish that we design a reasonably simplified effective model with two composite Higgs doublets. Additionally, we work with a general number N of right-handed neutrino flavor triplets participating on the seesaw mechanism. There are no experimental constraints limiting this number. The upper limit is set by the model itself. Provided that the condensation scale is of order 1017‑18 GeV and the number of right-handed neutrinos is
- Publication:
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European Physical Journal C
- Pub Date:
- August 2013
- DOI:
- 10.1140/epjc/s10052-013-2513-8
- arXiv:
- arXiv:1301.1554
- Bibcode:
- 2013EPJC...73.2513S
- Keywords:
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- Higgs Boson;
- Higgs Doublet;
- Electroweak Symmetry Breaking;
- Renormalization Group Equation;
- Electroweak Scale;
- High Energy Physics - Phenomenology
- E-Print:
- 12 pages, 4 figures, this third version is the one having been published in EPJC