Smoothly evolving Supercritical-String Dark Energy relaxes Supersymmetric-Dark-Matter Constraints

Details Smoothly evolving Supercritical-String Dark Energy relaxes Supersymmetric-Dark-Matter Constraints Smoothly evolving Supercritical-String Dark Energy relaxes Supersymmetric-Dark-Matter Constraints

2006-12-12

arxiv.org/abs/hep-ph/0612152v2

Phys.Lett.B649:83-90,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages revtex, 5 eps figures incorporated. Version to appear in Physics Lett. B, no effects on conclusions

Scientific paper

10.1016/j.physletb.2007.03.058

We show that Supercritical-String-Cosmology (SSC) off-equilibrium and time-dependent-dilaton effects lead to a smoothly evolving dark energy for the last 10 billion years in concordance with all presently available astrophysical data. Such effects dilute by a factor O (10) the supersymmetric dark matter density (neutralinos), relaxing severe WMAP 1,3 constraints on the SUSY parameter space. Thus, LHC anticipated searches/discoveries may discriminate between conventional and Supercritical-String Cosmology.

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