A Higgs--Saw Mechanism as a Source for Dark Energy
Lawrence M. Krauss (1), James B. Dent (2) ((1) Arizona State, University, Australian National University, (2) University of Louisiana at, Lafayette)
TL;DR
This paper proposes a Higgs--Saw mechanism where a GUT-scale mixing with a hidden scalar generates a small vacuum energy, potentially explaining dark energy without detectable terrestrial signatures.
Contribution
It introduces a novel Higgs--Saw mechanism linking GUT-scale physics to dark energy, with no current experimental signatures.
Findings
A small GUT-scale mixing can produce a vacuum energy density matching dark energy.
The model predicts no detectable signals in existing terrestrial experiments.
Cosmological tests are needed to verify the mechanism.
Abstract
Motivated by the see-saw mechanism for neutrinos which naturally generates small neutrino masses, we explore how a small GUT-scale mixing between the Standard Model Higgs and an otherwise massless hidden sector scalar can naturally generate a small mass and VEV for the new scalar which produces a false vacuum energy density contribution comparable to that of the observed dark energy dominating the current expansion of the Universe. The new scalar produces no discernible signatures in existing terrestrial experiments so that one may have to rely on other cosmological tests of this idea.
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