**AAS 206th Meeting, 29 May - 2 June 2005**

*Session 49 Dark Matter and Dark Energy*

Poster, Wednesday, 10:00am-7:00pm, Thursday, 9:20am-2:00pm, June 1, 2005, Ballroom A
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## [49.05] Decaying Higgs Fields and Cosmological Dark Energy

*B. Patla, R. J. Nemiroff (Michigan Tech.)*

The observed dark energy in the universe might give
particles inertial mass. We investigate one realization of
this idea, that the dark energy field might be a decayed
scalar component of a scalar field in the early universe
that creates inertial mass through spontaneous symmetry
breaking, e.g. a Higgs field. To investigate this
possibility, the cosmological Friedmann equation of energy
balance is augmented in a standard way to incorporate a
minimally coupled cosmological Higgs. For epochs where the
expansion of the universe is driven by matter and radiation
and not the scalar field, the observed hidden nature of the
Higgs field can be codified into a single differential
equation that we call the ``hidden higgs" condition. The
resulting differential equation is solved for the time
dependant scalar field and a simple and interesting solution
is found analytically. Such a Higgs field decays from Planck
scale energies rapidly and approximately exponentially from
onset, leaving only the initially negligible constant term
of the potential as a final cosmological constant. Such
evolution replaces the hierarchy problem with the problem of
explaining why such evolution is physically justified,
leaving the coincidence problem still unresolved.

If you would like more information about this abstract, please
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Bulletin of the American Astronomical Society, **37** #2

© 2005. The American Astronomical Soceity.