Dark energy from neutrinos and standard model Higgs potential

Details Dark energy from neutrinos and standard model Higgs potential Dark energy from neutrinos and standard model Higgs potential

May 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aph....35..629l&link_type=abstract

Astroparticle Physics, Volume 35, Issue 10, p. 629-633.

Physics

Scientific paper

The dark energy density of the universe is obtained from the Higgs potential by introducing a Higgs-dependent neutrino mass. In the standard picture of electro-weak symmetry breaking the Higgs potential is Vϕ = (λ/4)(ϕ2 ‑ v2)2 and the Higgs field rolls down to the minima at <ϕ> = v = 246.2 GeV and the net vacuum energy is zero. Now if the neutrino mass is a function of the Higgs field, then the vacuum expectation value of the Higgs is determined by maximizing the total pressure of the Higgs self interaction and the neutrino fluid Pϕ + Pν(m(ϕ)) w.r.t ϕ. The new minima <ϕ> = v + σm shifts from the standard Higgs vev v by a small amount σm. The total pressure of the Higgs-neutrino coupled fluid Pϕ(v + σm) + Pν(v + σm) = ‑ρΛ appears as the dark energy density of the universe. The magnitude of the dark energy is thus determined by to the neutrino mass and the Higgs potential.

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