Flipped SU(5) Predicts $δT/T$

Details Flipped SU(5) Predicts $δT/T$ Flipped SU(5) Predicts $δT/T$

2005-10-08

arxiv.org/abs/hep-ph/0510105v2

Phys.Lett.B635:247-252,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

1+15 pages, 6 figures, version to appear in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2006.03.007

We discuss hybrid inflation in supersymmetric flipped SU(5) model such that the cosmic microwave anisotropy $\delta T/T$ is essentially proportional to $(M /M_{P})^2$, where $M$ denotes the symmetry breaking scale and $M_{P}$ ($=2.4\times 10^{18}$ GeV) is the reduced Planck mass. The magnitude of $M$ determined from $\delta T/T$ measurements can be consistent with the value inferred from the evolution of SU(3) and SU(2) gauge couplings. In other words, one could state that flipped SU(5) predicts (more precisely `postdicts') $\delta T/T$. The scalar spectral index $n_s = 0.993\pm 0.007$, the scalar to tensor ratio satisfies $r \lapproxeq 10^{-6}$, while $dn_s/d{\rm ln}k \lapproxeq 4\times 10^{-4}$.

Affiliated with

Also associated with

No associations

Rating

Flipped SU(5) Predicts $δT/T$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Flipped SU(5) Predicts $δT/T$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flipped SU(5) Predicts $δT/T$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-192763