Dynamical Dark Energy

por Massimo Pietroni (INFN - Sezione di Padova)

miércoles 17 may. 2006 12:00 → 13:00 Europe/Madrid

Sala Seminarios IFIC (Edf. Institutos de Investigación)

I will review the possibility that the Dark Energy of the Universe is NOT a cosmological constant. After discussing the constraints on the equation of state after the latest SDSS and WMAP, I will focus on Scalar Tensor Gravity as a framework for accommodating a dynamical form of Dark Energy. Even after imposing the strong constraints on solar system tests of gravity, CMB and nucleosynthesis, strong deviations from standard cosmology are still possible in these theories. Among the possible signatures, I will discuss the modifications of the relic abundance of dark matter particles, which might have a deep impact on direct and indirect searches.