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Composite Higgs bosons from neutrino condensates in an inverted seesaw scenario
Journal article   Peer reviewed

Composite Higgs bosons from neutrino condensates in an inverted seesaw scenario

Leonardo Coito, Carlos Faubel Alama and Arcadi Santamaria
Physical review. D, v 101(7), 075009
01 Apr 2020
url
https://doi.org/10.1103/PhysRevD.101.075009View
Published, Version of Record (VoR)

Abstract

Astronomy & Astrophysics Physics, Particles & Fields Science & Technology Physical Sciences Physics
We present a realization of the idea that the Higgs boson is mainly a bound state of neutrinos induced by strong four-fermion interactions. The conflicts of this idea with the measured values of the top quark and Higgs boson masses are overcome by introducing, in addition to the right-handed neutrino, a new fermion singlet, which, at low energies, implements the inverse seesaw mechanism. The singlet fermions also develop a scalar bound state that mixes with the Higgs boson. This allows us to obtain a small Higgs boson mass even if the couplings are large, as required in composite scalar scenarios. The model gives the correct masses for the top quark and Higgs boson for compositeness scales below the Planck scale and masses of the new particles above the electroweak scale, so that we obtain naturally a low-scale seesaw scenario for neutrino masses. The theory contains additional scalar particles coupled to the neutral fermions, which could be tested in present and near future experiments.

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