WMAPing THE UNIVERSE: SUPERSYMMETRY, DARK MATTER, DARK ENERGY, PROTON DECAY AND COLLIDER PHYSICS

Abstract

In this review we critically discuss constraints on minimal supersymmetric models of particle physics as implied by the recent astrophysical observations of WMAP satellite experiment. Although the prospects of detecting supersymmetry increase dramatically, at least within the context of the minimal models, and 90% of the available parameter space can safely be reached by the sensitivity of future colliders, such as Tevatron, LHC and linear colliders, nevertheless we pay particular emphasis on discussing regions of the appropriate phase diagrams, which — if realized in nature — would imply that detection of supersymmetry, at least in the context of minimal models, could be out of colliders reach. We also discuss the importance of a precise determination of the radiative corrections to the muon anomalous magnetic moment, gμ-2, both theoretically and experimentally, which could lead to elimination of such "out of reach" regions in case of a confirmed discrepancy of gμ-2 from the standard model value. Finally, we briefly commend upon recent evidence, supported by observations, on a dark energy component of the Universe, of as yet unknown origin, covering 73% of its energy content. To be specific, we discuss how supergravity quintessence (relaxation) models can be made consistent with recent observations, which may lead to phenomenologically correct constrained supersymmetric models, accounting properly for this dark energy component. We also outline their unresolved problems.