Smoothly evolving supercritical-string dark energy relaxes supersymmetric-dark-matter constraints

A.B. Lahanas, N.E. Mavromatos, D.V. Nanopoulos
2007 Physics Letters B  
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.
doi:10.1016/j.physletb.2007.03.058 fatcat:3unsseplk5ddve5oyltnsxnnj4