TY - JOUR

T1 - Hybrid dark sector: Locked quintessence and dark matter.

AU - Axenides, Minos

AU - Dimopoulos, Konstantinos

PY - 2004/7/19

Y1 - 2004/7/19

N2 - We present a unified model of dark matter and dark energy. The dark matter field is a modulus corresponding to a flat direction of supersymmetry, which couples, in a hybrid type potential, with the dark energy field. The latter is a light scalar, whose direction is stabilized by non-renormalizable terms. This quintessence field is kept 'locked' on top of a false vacuum due to the coupling with the oscillating dark matter field. It is shown that the model can satisfy the observations when we consider low-scale gauge-mediated supersymmetry breaking. The necessary initial conditions are naturally attained by the action of supergravity corrections on the potential, in the period following the end of primordial inflation.

AB - We present a unified model of dark matter and dark energy. The dark matter field is a modulus corresponding to a flat direction of supersymmetry, which couples, in a hybrid type potential, with the dark energy field. The latter is a light scalar, whose direction is stabilized by non-renormalizable terms. This quintessence field is kept 'locked' on top of a false vacuum due to the coupling with the oscillating dark matter field. It is shown that the model can satisfy the observations when we consider low-scale gauge-mediated supersymmetry breaking. The necessary initial conditions are naturally attained by the action of supergravity corrections on the potential, in the period following the end of primordial inflation.

KW - dark matter

KW - dark energy theory

KW - cosmology of theories beyond the SM

KW - physics of the early universe

U2 - 10.1088/1475-7516/2004/07/010

DO - 10.1088/1475-7516/2004/07/010

M3 - Journal article

VL - 2004

SP - 010

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

IS - 07

ER -