Talk detail

Participant	Konikowska, Dominika
Institution	Bielefeld University - Universitaetsstr. 25 - Bielefeld - North Rhine - Westphalia - Germany

Session	AT4	Accepted		Order	Time
Talk	Oral abstract	Title	Cosmology challenges brane scenarios in AdS_5
Co-authors
Abstract	We study a theory of dilaton gravity in a 5D brane scenario, with dilaton non-minimally coupled to the matter content of the universe localized on the brane. We investigate whether the observed large-scale structure of the universe can exist on the brane in the effective 4D dilaton gravity scenario with an exact anti de Sitter bulk. The corresponding constraint on the spatial derivative of the matter energy density is derived, and subsequently quantified using the current limits resulting from searches for variation of the Newton's constant. By confronting it with the observational data from galaxy surveys, we show that the derived bound does not allow for the existence of the large-scale structure as is observed today. Thus, such a dilaton gravity brane scenario is ruled out.