Quintessence Unification Models from Non-Abelian Gauge Dynamics

Details Quintessence Unification Models from Non-Abelian Gauge Dynamics Quintessence Unification Models from Non-Abelian Gauge Dynamics

2001-11-22

arxiv.org/abs/hep-ph/0111292v3

JHEP 0301 (2003) 033

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, LaTeX, 3 figures, minor changes, subsections added (for presentation purpose)

Scientific paper

10.1088/1126-6708/2003/01/033

We show that the condensates of a non-abelian gauge group, unified with the standard model gauge groups, can parameterize the present day cosmological constant and play the role of quintessence. The models agree with SN1a and recent CMB analysis. These models have {\it no free} parameters. Even the initial energy density at the unification scale and at the condensation scale are fixed by the number of degrees of freedom of the gauge group (i.e. by $N_c, N_f$). The values of $N_c, N_f$ are determined by imposing gauge coupling unification and the number of models is quite limited. Using Affleck-Dine-Seiberg superpotential one obtains a scalar potential $V=\Lm_c^{4+n}\phi^{-n}$. Models with $2

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