Lawrence Krauss just wrote an interesting letter: “Higgs Seesaw Mechanism as a Source for Dark Energy” – Krauss & Dent, PRL 2013
in it he argues for a see-saw mechanism in the Higgs sector which gives a natural scale for dark energy which is small, as observed.
The key point is that the energy scale is suppressed by
λ ~ (mH/mX)2)
where mH is the Higgs scale and X is some unification scale with mX >> mH
as a bonus you may expect a new long range weak force to go with the new physics.
Potentially interesting speculation.
Many moons ago, I wrote almost massless world on this here very blog…
where I was pondering deep issues of cosmological constants and symmetries (this was back during the flap over Lisi’s speculations)
and along the way I came up with this:
“…the “prediction” of the Higgs mass really is just numerology, although I could imaging something analogous to a see-saw mechanism driving such a relation in some theory.
If I were really cleverbold I would have predicted that the Standard Model required a non-zero Lambda 😉
But, yeah, smoothly running the Higgs mass with Lambda uses the cosmological constant to solve the hierarchy problem and postdicts the cosmology…”
(see also earlier comment)
this is the problem with blogging – if I hadn’t had the blog to release my random speculations the sheer frustration might have driven me to write the PRL instead…