Vacuum energy density kicked by the electroweak crossover
Abstract
Using qtheory, we show that the electroweak crossover can generate a remnant vacuum energy density Λ∼E_{ew}^{8}/E_{Planck}^{4}, with effective electroweak energy scale E_{ew}∼10^{3}GeV and reduced Planckenergy scale E_{Planck}∼10^{18}GeV. The obtained expression for the effective cosmological constant Λ may be a crucial input for the suggested solution by ArkaniHamed et al. of the triple cosmic coincidence puzzle (why the orders of magnitude of the energy densities of vacuum, matter, and radiation are approximately the same in the present Universe).
 Publication:

Physical Review D
 Pub Date:
 October 2009
 DOI:
 10.1103/PhysRevD.80.083001
 arXiv:
 arXiv:0905.1919
 Bibcode:
 2009PhRvD..80h3001K
 Keywords:

 95.36.+x;
 04.20.Cv;
 12.15.Ji;
 98.80.Jk;
 Dark energy;
 Fundamental problems and general formalism;
 Applications of electroweak models to specific processes;
 Mathematical and relativistic aspects of cosmology;
 Astrophysics  Cosmology and Extragalactic Astrophysics;
 General Relativity and Quantum Cosmology;
 High Energy Physics  Phenomenology;
 High Energy Physics  Theory
 EPrint:
 16 pages