ar X iv : h ep - t h / 06 07 06 1 v 2 25 N ov 2 00 6 Predictions of Dynamically Emerging Brane Inflation Models
نویسنده
چکیده
We confront the recent proposal of Emerging Brane Inflation with WMAP3+SDSS, finding a scalar spectral index of ns = 0.9659 +0.0049 −0.0052 in excellent agreement with observations. The proposal incorporates a preceding phase of isotropic, non accelerated expansion in all dimensions, providing suitable initial conditions for inflation. Additional observational constraints on the parameters of the model provide an estimate of the string scale. A graceful exit to inflation and stabilization of extra dimensions is achieved via a string gas. The resulting pre-heating phase shows some novel features due to a redshifting potential, comparable to effects due to the expansion of the universe itself. However, the model at hand suffers from either a potential over-production of relics after inflation or insufficient stabilization at late times.
منابع مشابه
ar X iv : h ep - t h / 06 11 21 2 v 1 2 0 N ov 2 00 6 Dynamics of Weyl Scale Invariant non - BPS p = 3 Brane
The action of Weyl scale invariant p=3 brane (domain wall) which breaks the target super Weyl scale symmetry in the N=1, 5D superspace down to the lower dimensional Weyl symmetry W (1, 3) is derived by the approach of coset method. Its dual form action for the Weyl scale invariant tensor gauge field theory is also constructed.
متن کاملar X iv : h ep - p h / 06 11 27 1 v 2 2 2 N ov 2 00 6 Structure of the axial - vector meson D s 1 ( 2460 )
متن کامل
ar X iv : h ep - p h / 06 11 27 1 v 1 2 1 N ov 2 00 6 Structure of the axial - vector meson D s 1 ( 2460 )
متن کامل